If sinA=3/4, Cos2A=?| Trigonometry solution

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If sinA=3/4, Cos2A=?| Trigonometry solution
hllo guys welcome to the new video. guys in this video we will discuss about a fantastic topic that is trigonometric solution of short questions.
many students have problem in trigonometry so I have tried to solve the problems of the students.
so watch the full video and support me.

thank you

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