Question

(ii) cos 90° + cos2 45° sin 30° tan 45º.
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Answer 1

Hey❤️

cos 90° + cos 45°² sin 30° tan 45º

$= 0 + ( { \frac{1}{ \sqrt{2} }) }^{2} \times \frac{1}{2} \times 1$

$= 0 + \frac{1}{2} \times \frac{1}{2}$

$= \frac{1}{4}$

OR (SINCE THE QUESTION ISN'T FRAMED WELL)

cos 90° + 2.cos 45° .sin 30° .tan 45º

= 0 +2(1/√2) x 1/2 x 1

= 0 + √2 x 1/2

= 1/√2

Answer 2

Answer:

Answer is given in the picture

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