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3 tan25 tan40 tan (90-50) tan (90-25) - 1/2 * 3 / 4[ cos2 29 + cos2 (90-29)]
= 3 tan 25 tan 40 cot 40 cot 25 - 3/2 / 4 ( cos2 29 + sin2 29)
=3-3/2 / 3
= 3 / 2*3
=2
I hope u understand this!
= 3 tan 25 tan 40 cot 40 cot 25 - 3/2 / 4 ( cos2 29 + sin2 29)
=3-3/2 / 3
= 3 / 2*3
=2
I hope u understand this!
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