Find the value of tan 3a if tan a is equal to 1 by 2
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Step-by-step explanation:
tana = 1/2
चूँकि tan3a = 3tana - tan³a / 1-3tan²a
= 3(1/2) - (1/2)³/1-3(1/2)²
= 3/2 - 1/8 / 1 - 3/4
= (12 - 1/8)/(1/4)
= (11/8)/(1/4)
= 11/8 *4
= 11/2 = 5.5
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