Question

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& If sin (90°-o) = cos (90 - 0) thon o will b π÷4​

Answer 1

Answer:

Step-by-step explanation:

$\sin ( 90^\circ -\theta) =\cos ( 90^\circ -\theta)\\\\\sin ( 90^\circ -\theta)=\sin (90^\circ- ( 90^\circ -\theta)))\\\\\sin ( 90^\circ -\theta)=\sin (90^\circ- 90^\circ +\theta)))\\\\\sin ( 90^\circ -\theta) = \sin\theta\\\\90^\circ-\theta=\theta\\\\2\theta =90^\circ\\\\\bf \theta = 45^\circ=\frac{\pi}4$