Question

If Sec @ = 2 then Sin @ = ___________​

Answer 1

sec@ =2

cos@ =1/sec@

=1/2

Now, sin@ = √1-cos^2@

= √1-(1/2)^2

= √(1-1/4)

= √(4-1)/4

=√(3/4)

=√3/2.

so, sin@ = √3/2