More important identities
You don't have to know all the identities off the top of your head. But these you should. Defining relations for tangent, cotangent, secant, and cosecant in terms of sine and cosine. |tan t = |sin t | |cot t = |1 |= |cos t | | |[pic] | | |[pic] | |[pic] | | |cos t | | |tan t | |sin t | |sec t = |1 | |csc t = |1 | | | | |[pic] | | |[pic] | | | | |cos t | | |sin t | | |

The Pythagorean formula for sines and cosines.
sin2 t + cos2 t = 1
Identities expressing trig functions in terms of their complements cos t = sin([pic]/2 – t) sin t = cos([pic]/2 – t)
cot t = tan([pic]/2 – t) tan t = cot([pic]/2 – t)
csc t = sec([pic]/2 – t) sec t = csc([pic]/2 – t)
Periodicity of trig functions. Sine, cosine, secant, and cosecant have period 2[pic] while tangent and cotangent have period[pic]. sin (t + 2[pic]) = sin t
cos (t + 2[pic]) = cos t
tan (t + [pic]) = tan t
Identities for negative angles. Sine, tangent, cotangent, and cosecant are odd functions while cosine and secant are even functions. sin –t = –sin t
cos –t = cos t
tan –t = –tan t
Sum formulas for sine and cosine
sin (s + t) = sin s cos t + cos s sin t
cos (s + t) = cos s cos t – sin s sin t
Double angle formulas for sine and cosine
sin 2t = 2 sin t cos t
cos 2t = cos2 t – sin2 t = 2 cos2 t – 1 = 1 – 2 sin2 t Less important identities
You should know that there are these identities, but they are not as important as those mentioned above. They can all be derived from those above, but sometimes it takes a bit of work to do so. The Pythagorean formula for tangents and secants.

sec2 t = 1 + tan2 t
Identities expressing trig functions in terms of their supplements...

...Unit2
Managing Paediatric Illness and Injury
Level 2
1. Describe the common types of fractures and how to manage them.
Broken bone.
Based on the location and severity of the fracture, a broken bone usually must be set into position and supported until it is strong enough to bear weight. Your physician will recommend the most proven treatment approach, usually casting or surgery
2. Describe how to manage a dislocation
Relieve...

...UNIT2: FINANCE IN THE HOSPITALITY INDUSTRY
Get assignment help for this unit at assignmenthelpuk@yahoo.com
LO1 Understand sources of funding and income generation for business and services industries
Funding: sources eg retained profits, loans, banks, investors, small business schemes, franchise, hire purchase, sponsorship, lease schemes, creditors, debt factoring Income generation: methods eg sales, commission, sub-letting, sponsorship, grants,...

...125 to binary. Use the division by 2 method.
125 /2 is 62 remainder 1 (LSB)
62 /2 is 31 remainder 0
31 /2 is 15 remainder 1
15 /2 is 7 remainder 1
7 /2 is 3 remainder 1
3 /2 is 1 remainder 1
1 /2 is 0 remainder 1 (MSB)
• Reading from MSB to LSB is 1111101
2) Convert your binary result back into decimal to...

...Unit CU678
1.1 Describe what is meant by diversity and why it should be valued?
Diversity can be differences in race, heritage, customs, belief systems, physical appearance, mental capabilities, etc. Diversity should be respected and valued because nobody is completely the same as anyone else. Why should these different traditions and customs be valued?
They enrich a society because they allow people to experience different thinking processes, to see that there is more than...

...Whole resubmission
D1 - Discuss the child’s needs in relation to the selected area of development.
The three observations that I carried out shows that . . .
Written Account
The observations show that child A has not developed fully balance and coordination as he got unsteady on the tram-pet, we can help to improve this by putting in place bars to hold on or creating activities around jumping but on a flat, steady surface. Child A showed he was confident when balancing on the balance...

...UNIT3 Health and social care Level 2
Explain how the plan meets the health and wellbeing needs of the individual
In health and social care the wellbeing of the individual is essential for all round health and well-being. Using the case of Miss JB, this essay I will explain how my plan will meet the health and wellbeing needs of this individual. To assist this process an action plan have been drawn up to support the short term, mid-term and long...

...Chapter 2 Quiz lab
1. What mineral composition is most characteristic of felsic rocks?
a. olivine, pyroxene, and calcium-rich plagioclase
b. orthoclase, quartz, and biotite
c. calcium-rich plagioclase and hornblende with some olivine
d. particles of volcanic ash welded together
2. What mineral composition is most characteristic of mafic rocks?
a. olivine, pyroxene, and calcium-rich plagioclase
b. orthoclase, quartz, and...

...Activity 1.1 Minerals: Building Blocks of Rock
1. In your own words, list the 5 characteristics an Earthmaterial must have in order to be considered a mineral.
a. ______________________________
b. ______________________________
c. ______________________________
d. ______________________________
e. ______________________________
2. Check the appropriate boxes to show which of the following items are minerals or not minerals. If not a...