Question

║QUESTION║║TRIGONOMETRIC FUNCTIONS║║CLASS 11║
If sin Ф = $\frac{1}{\sqrt{5} }$ and cos ∅ = $\frac{3}{\sqrt{10} }$, prove that Ф + ∅ = $\frac{\pi }{4}$ , if A, B are +ve acute angles.

Answer 1

Answer:

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Answer 2

Answer:

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