Find the value of a if (sin A + cosec A) ^2 + (cos A + sec A) ^2 = a + tan^2A + cot^2A (a) 5 (b) 4 (c) 0 (d) 7
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sin^2A+cosec^2A+2sinA cosecA+cos^2A+sec^2A+2cosA secA
=1+cot^2A+1+2+1+tan^A+2
=7+tan^2A+cot^2A
so
a=7
answer (d)
=1+cot^2A+1+2+1+tan^A+2
=7+tan^2A+cot^2A
so
a=7
answer (d)
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