2tan-1(-1) +sin-1 (-1/2) +coa-1 (-1/2) is equal is:
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3
Answer:
using the unit circle, sin 30 + cos 60 - 2tan 45 can be solved as follows:
= sin 30 + cos 60 - 2tan 45
= [1/2] + [1/2] - [2(1)]
= 1 - 2
= -1
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cos -1 (1/2) +sin -1 (1/2) tan -1 (1/√3) is equal to (a)π (b)π/3 (c)4π/3 (d)3πRead more on Sarthaks.com - https://www.sarthaks.com/46245/cos-1-1-2-sin-1-1-2-tan-1-1-3-is-equal-to-a-b-3-c-4-3-d-3-4
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