Question

If cos Θ = negative two over five and tan Θ > 0, what is the value of sin Θ?

Answer 1

negative square root 21

negative square root 21 over 5

square root 21 over 5

square root of 21 over 2

Answer 2

@ganeshie8

Answer 3

Work out the angles for cos Θ = negative two over five
and tan Θ > 0
Then apply the obtained angles to the angle in 'sin Θ'

Answer 4

how do I do that @Surgeon