Math, asked by KRITISHKA1142, 1 year ago

Write all Formulas of Trigonometry ? (Class 10th)

Answers

Answered by Anonymous
13
sinx•cosecx=1
tanx•cotx=1
cosx•secx=1

1. sin (-x) = -sin x

2. cos (-x) = cos x

3. tan (-x) = -tan x

4. cosec (-x) = -cosec x

5. sec (-x) = sec x

6. cot (-x) = -cot x

sin (x + y) = sin(x) cos(y) + cos(x) sin(y),

cos(x + y) = cos(x) cos(y) - sin(x) sin(y),

sin(x - y) = sin(x) cos(y) - cos(x) sin(y),

cos(x - y) = cos(x) cos(y) + sin(x) sin(y),

sin(2x) = 2 sin(x) cos(x),

cos(2x) = cos2(x) - sin2(x),

cos(2x) = 2 cos2(x) - 1,

cos(2x) = 1 - 2 sin2(x),

tan(2x) = [2 tan(x)]/[1-tan2(x)]...

thankyou

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KRITISHKA1142: why
Answered by SmãrtyMohït
16
❤❤Here is your answer ✌ ✌

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