If #sin theta = 1/4, then cos(90degrees - theta) =?

Explanation please?

2 Answers
Jan 29, 2018

cos(90^@-theta)=1/4cos(90θ)=14

Explanation:

For all angles AA, cos(90^@-A)=sinAcos(90A)=sinA

Hence cos(90^@-theta)=sintheta=1/4cos(90θ)=sinθ=14

Jan 29, 2018

1/414

Explanation:

"using the "color(blue)"trigonometric identity"using the trigonometric identity

•color(white)(x)cos(90-theta)^@=sinthetaxcos(90θ)=sinθ

rArrcos(90-theta)=sintheta=1/4cos(90θ)=sinθ=14