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5. Trigonometric Ratios
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Q27 of 143 Page 6

is equal to

Given,



∵ tan 45 = 1


Put this value,


We get;



sin 0°


Since sin 0° = 0

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If A + B = 90°, then is equal to

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is equal to

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sin 2A = 2 sin A is true when A =

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is equal to

Questions · 143
5. Trigonometric Ratios
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