Question

If square root of (1-sinx)/(1+sinx) =secx-tanx then the quadrant in which x lies is​

Answer 1

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Answer 2

Answer : either 1 or 4

explanation : Here (secx - tanx)

1st : secx has positive in 1st quadrant and 4th quadrant.

tanx has negative in 2nd and 4th quadrants.

But secx has negative in 2nd quadrant. So we take either 1st

or 4th quadrants.