and i request u to solve this question handwritten. so it will be easier for me to understand!! thanks
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Cot thita tan (90 - thita ) - sec ( 90 - thita ) cosec thita + ( sin2 25+ sin2 65) + root 3 ( tan 5 tan 15 tan 30 tan 75 tan 85 )
= cot thita cot thita - cosec thita cosec thita+ ( sin2 25 + cos2 (90 - 65) + ( tan 60 tan 30 tan 5 tan 85 tan 15 tan 75 )
=cot2 thita - cosec2 thita + sin2 thita + cos2 thita + tan60 cot(90-30) tan 5 cot(90-85) tan 15 cot(90-75)
=1 +1+ tan60 cot 60 tan 5 cot 5 tan 15 cot 15
= 2 + tan 60*1/tan 60 tan5*1/ tan 5 tan 15*1/tan 15
=2+1
=3
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