9. sin [2cos invers(3/5),
Answers
Answered by
1
Answer:
sin106
Explanation:
sin[2cos^-1(3/5)]
=sin[2×53°]
=sin106
Answered by
1
sin2θ=2sinθ.cosθ
sin(2x57)=2sin57.cos57
=2x3/5x4/5
=24/25
: )
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