Question

if
Sin Q - cos Q = 0 and 0<Q<90"
prove that a = 45"

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Answer 1

Answer:

here,

sin∅ - cos∅ = 0

=> sin∅ = cos∅

=> sin∅/cos∅ = 1

=> tan∅ = 1

=> tan∅ = tan45°. ( since , tan45° = 1)

=> ∅ = 45°

hence proved.

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