Thread: Another prove: double angles

So here's another problem that's been puzzling me for a couple hours. I got my answer as

---1---- does not equal--- 1--- but I am very unsure whether this is right
4cos^2x---------------cos^2x
Here's the question
Prove that:
2csc2xtanx=sec^2x

Originally Posted by tallguywhoplaysguitar

So here's another problem that's been puzzling me for a couple hours. I got my answer as

---1---- does not equal--- 1--- but I am very unsure whether this is right
4cos^2x---------------cos^2x
Here's the question
Prove that:
2csc2xtanx=sec^2x

finish it ...

thanks, I was getting it wrong in the first step by placing the 2 in the denominator