Question

sinx=5/13
find sin2x

Answer 1

\(\Large \color{purple}{\rightarrow sin^2x = ({5 \over 13})^2 }\)

\(\Large \color{purple}{\rightarrow sin^2x = {25 \over 169} }\)

You meant \(sin^2x\) right?

Answer 2

no i did not but thanks anyway I just figured it out.

Answer 3

Out of curiosity, what is your answer SandyHearts? :)

Answer 4

120/169

Answer 5

double angle formula is sin2X = 2sinXcosX