1.

Sin250 degree+ tan 290 degree butta cot200 degree+ cos340 degree

Answer»

Sin250 = sin(270-20) = -cos(20)
tan290 = tan(270+20) = -cot(20)

&


cot 200= cot (180+20) = cot20
cos340= cos(360-20) = cos20


numerator = -(cos20+cot20)
DENOMINATOR= cos20+cot20

answer = -1



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