Note: Trigonometrical Ratios of complementary angles:
For
(i) (ii)
(iii) (iv)
(v) (vi)
Evaluate:
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. Hence proved.
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Hence proved.
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. Hence proved.
and
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and
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and
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= RHS. Hence proved.
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Question 37: Find if:
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Question 38: Find if:
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Question 39: Find if:
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Therefore
Question 41: Find the value of if:
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Question 42: Find the value of if:
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Question 43: Find if:
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Question 44: Find the value of where
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Question 45: Find the value of where
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[2010]
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Question 49: Without using trigonometric tables, evaluate
[2014]
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