Question

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(1 - All + Sun)
2 tan B
(f) If B = 30°, prove that sin 2B = 2 sin B. cos B =
1 + tan2B
tan A – tan B
B)
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Answer 1

Answer:

• 2sinB = 2sinB
• 2(1/2) = 2(1/2)
• 1 = 1