Posted by
**soumitra** on
.

if 0<A<90 and

Sin A+ cos A+ tan A+cot A+sec A+cosec A =7

then prove that sin 2A is a root of (x)^2 -44x-36=0

Wednesday

March 29, 2017
Posted by
**soumitra** on
.

if 0<A<90 and

Sin A+ cos A+ tan A+cot A+sec A+cosec A =7

then prove that sin 2A is a root of (x)^2 -44x-36=0

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