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Questions  

The value of cotsin1costan11 is

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By Expert Faculty of Sri Chaitanya
a
0
b
-1
c
1
d
None of these

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detailed solution

Correct option is C

We know that tan−11=π4∴ cot⁡sin−1⁡cos⁡tan−1⁡1=cot⁡sin−1⁡cos⁡π4=cot⁡sin−1⁡12=cot⁡π4=1

ctaimg

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If t=sec1x+1x+sec1y+1y where xy < 0, then the possible values of t is/are

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