Question

prove that 1 + Cos A by sin a is equal to sin a by 1 - cos a​

Answer 1

Answer:

Step-by-step explanation:R.h.s

1+cosA/sinA

Rationalising we get

(1+cosA)/sinA×(1-cosA)/(1-cosA)

(1-cos^2A)/sinA(1-cosA)

sin^2A/sinA(1-cosA)

sinA/(1-cosA)

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Answer 2

Answer:

Step-by-step explanation:R.h.s

1+cosA/sinA

Rationalising we get

(1+cosA)/sinA×(1-cosA)/(1-cosA)

(1-cos^2A)/sinA(1-cosA)

sin^2A/sinA(1-cosA)

sinA/(1-cosA)

Hope you like it and mark me as brainliest