cos(sin^-1 (5/13))solve
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14
Let x=arcsin(5/13), then sin x=5/13
and cos ( arcsin(5/13) )=cos x = √{13²-5²}/13=12/13
and cos ( arcsin(5/13) )=cos x = √{13²-5²}/13=12/13
Answered by
16
x= sin ^-1 (5/13)
or sinx=5/13
or sin^2 x=25/169
or 1-cos^2 x=25/169
or cos^2 x=1-25/169=144/169
or cosx= +- 12/13
or cos (sin^-1 (5/13))= +-12/13.... (putting the value of x)
or sinx=5/13
or sin^2 x=25/169
or 1-cos^2 x=25/169
or cos^2 x=1-25/169=144/169
or cosx= +- 12/13
or cos (sin^-1 (5/13))= +-12/13.... (putting the value of x)
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