If (coto- tano) = m & (seco- coso) = n prove that (m square n) 2÷3

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This question was asked in Ex 8.4, 1

If (cot o - tan o) = m & (sec o - cos o ) = n prove that (m square n) 2÷3 - (mn square) 2÷3=1

Punam Vishwakarma

July 3, 2018, 11:39 p.m.

Class 6