Engineering
Mathematics
Properties of Inverse Trigonometric Function
Question

The value of sin−1(1213)−sin−1(35)  is equal to

π2−sin−1(5665)

π−cos−1(3365)

π2−cos−1(965)

π−sin−1(6365)

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Solution

sin−1(1213)−sin−1(35)

sin−1(x1−y2−y1−x2)

=sin−1(3365)=cos−1(5665)=π2−sin1(5665)