1. anonymous

What do u Need help with

2. anonymous

If $f(x)=\frac{ 3 }{ 2}\sqrt{1+\tan x} \times \sec ^{2} x$ then find f(0)

3. anonymous

...What math are you in?

4. DanJS

do you know how to determine the tangent of an angle

5. DanJS

If you look at the unit circle of radius 1, the tangent is y/x for any point on the circle

6. DanJS

of the angle is zero degrees, you are on the +x axis, and y/x will be zero, so tangent of zero is 0...

7. DanJS

secant , is 1/cos(x), any point on the circle is (x , y ) = (cos , sin ) the x coordinate for zero degrees (+x axis) , is 1

8. DanJS

put those values in and solve... f(0) http://www.mathsisfun.com/geometry/unit-circle.html

9. anonymous

10. DanJS

yep

11. anonymous

Oh, Thanks!