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+1 vote
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in Trigonometry by (46.9k points)
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Find the principal value of 

(i) sin-1 (1/√2)

(ii) cos-1 (√3/2)

(iii) cosec-1 (-1)

(iv) sec-1 (-√2)

(v) tan-1 (√3)

1 Answer

+1 vote
by (49.1k points)
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Best answer

(i) sin-1 (1/√2)

So 

(ii) cos-1 (√3/2)

(iii) cosec-1 (-1)

(iv) sec-1 (-√2)

(v) tan-1 (√3)

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