Question

find the trigonometic ratios of 45°, in a right-angled​

Answer 1

Answer:

Trigonometrical Ratios of 45°

Let a rotating line →OX rotates about O in the anti-clockwise sense and starting from the initial position →OX traces out ∠AOB = 45°.

Take a point P on →OY and draw \(\overline{PQ} ...

Now, ∠OPQ = 180° - ∠POQ - ∠PQO.

= 180° - 45° - 90°

= 45°.

Therefore, in the △OPQ we have, ∠QOP = ∠OPQ.

Answer 2

Answer:

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