if sin 56degree =X then express sin34degree in terms of x
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sin34/sin56 + cos34/cos56 = sec34cosec34
= sin34/cos(90-56) + cos 34/sin(90-56)
= sin34/cos34 + cos34/sin34
= sin*sin34 + cos*cos34/cos34*sin34
= 1/cos34 * 1/sin34
= sec34*cosec34.....
Hence Proved!
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sin 56 = x
sin (90-37) = x
cos 37 = x
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