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5. Trigonometric Ratios
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Q12 of 143 Page 6

If are acute angles, find the degree measure of satisfying


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10

In where are acute angles, find the degree measure of .

11

If A, B, C are the interior angles of a , show that:

(i) (ii)

13

If is a positive acute angle such that , find the value of .

14

If , where and are acute angles, find the value of .

Questions · 143
5. Trigonometric Ratios
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