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Sin 5°. sin 22°. sin 68°/ cos 22°.cos 60°. cos 85° ​

Answer»

ANSWER:

The Formulas to be used in this Questions are:=>cos(90 - x) = SIN x   e.g. cos 22 = cos(90-68)= sin 22

=>tan(90 - x) = cot x    e.g. cot 15 = cot(90-75) = tan 15

=>tanx.cotx = 1

Now Question is,

2sin68/cos22 - 2cot15/5tan75 - (3/5)tan45 tan20 tan40 tan50 tan70

=2sin68/sin68 - 2tan75/5tan75 - (3/5)1 tan20 tan40 cot40 cot 20

=2 - 2/5 - 3/5= 1

HOPE THIS HELPS U

PLZ MARK AS BRAINLYEST



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