Math, asked by aimanzhaeerkhan, 10 months ago

2
1. If sin x =2/3
find the value of cos 2x.

Answers

Answered by gokulbiologylover

0

the third side woul be root 5 (according to Pythagoras theorem)

value of cos^2x=

root 5/3 × root 5/3

= 5/9

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