Question

tell all the formulaes of trignometry​

Answer 1

Answer:

in which class 10 th ,11th or 12th.

10th class formula

1. .sin theta square + cos theta square equal to 1
2. 1 + tan square theta is equal to sec square theta
3. 1 + cot square theta is equal to cosec square theta

class 11th formulas

1. sin (a + b )is equal to sin a cos b + cos a sin b
2. sin (A minus b) is equal to sin a cos b minus cos a sin b
3. cos (a + b) is equal to cos a cos b minus sin a sin b
4. cos ( a - b )is equal to cos a cos b + sin a sin b
5. 2 sin (a + b) equal to sin (a + b) + sin (a minus b)
6. 2 cos a sin b is equal to sin (A + B) minus sin( A - b)
7. 2 cos a cos b equal to Cos (A + B) + cos( a - b)
8. - 2 sin a sin b equal to Cos( A + B) minus Cos( a- b)
9. 2 sin A + B by 2 cos a minus b by 2 equal to sin A + sin b
10. 2 cos A + B by 2 sin A minus B by 2 equal to sin A minus sinB.
11. 2 cos A + B by 2 Cos A minus B by 2 two equal to Cos A + cos B
12. - 2 sin A + B by 2 sin A minus B by 2 equal to Cos A minus Cos b
13. 2 sin x cos x is equal to sin 2x
14. to tan x upon 1 + tan square x is equal to sin 2x
15. cos 2x equal to cos square x minus sin square x
16. cos 2x is equal to 2 cos square x - 1
17. cos 2x equal to 1 minus 2 sin square x
18. cos 2x is equal to 1 minus tan x upon 1 + tan x.
19. tana + b equal to tan A+ tan B upon 1 minus tan A tanB.

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sorry I am in class 11 so I cannot able to write 12th class formulas.

if you want to more formula then search on Google..

I think this is sufficient for you.

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