Question

3. If cos A = x, then express sin A in terms of x.​

Answer 1

x= CosA = √1-Sin^2A or SinA=√1-x^2

Answer 2

Step-by-step explanation:

X=COS A

SQUARING ON BOTH SIDES

X^2=COS^2A

X^2=1-SIN^2A

SIN^2A=1-X^2

SIN A=ROOT OF (1-X^2)