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3) in ABC and Xyz, it LA and LX are acute angles such that, cos a=cost - Lä then show that |
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Answer» Answer: sec(9 0 ˚ −θ)COS(9 0 ˚ −θ)TAN(9 0 ˚ −θ) SIN(9 0 ˚ −θ)COSEC(9 0 ˚ −θ)cotθ
+ tan1 0 ˚ tan3 5 ˚ tan5 5 ˚ tan8 0 ˚
sin 2 6 5 ˚ +sin 2 2 5 ˚
+2cos 2 3 2 ˚ cosec 2 5 8 ˚ −cos 2 4 5 ˚ |
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