1.

sin(-theta)/sin(180^circ %2B theta) %2B cos(theta)/sin(90^circ %2B theta) - tan(90^circ %2B theta)/cot(theta)

Answer»

cos theta/ + sin(-theta)/sin(90+theta) sin(180 + theta)- tan(90+theta)/ cot theta

= cos theta/ - sin(theta)/ cos (theta) - sin(theta)- cot theta/ cot theta

= 1 + 1 - 1

= 2 - 1

= 1



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