Question

if sinA=1/2 find cosA and tanA​

Answer 1

Answer:

Given,

sinA = 1/2

We know that ,

sin²A + cos²A = 1

=> (1/2)² + cos²A = 1

=> cos²A = 1 - (1/4)

=> cos²A = 3/4

So, the value of cosA is 3/4

Again we know that ,

tanA = sinA/cosA

=> tanA = (1/2)/(3/4)

=> tanA = (1/2)×(4/3)

=> tanA = 2/3

So, tanA = 2/3