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Mathematics
Mathematics
Problem
Prove that
sin
−
1
3
5
−
sin
−
1
8
17
=
cos
−
1
84
85
\sin^{-1} \frac{3}{5} - \sin^{-1} \frac{8}{17} = \cos^{-1} \frac{84}{85}
sin
−
1
5
3
−
sin
−
1
17
8
=
cos
−
1
85
84
.
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