Question

Without using the trigonometric tables, find the values of :
iv) cos 90° + :cos^2 45° sin 30° tan 45°
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Answer 1

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Answer:

cos 90 = 0

cos 45 = $\frac{1}{\sqrt{2} }$

sin 30 = $\frac{1}{2\\}$

tan 45 = 1

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