1.

If `tantheta =-4/3," then " sintheta` isA. `-4/5" but not "4/5`B. `-4/5or4/5`C. `4/5" but not "-4/5`D. None of these

Answer» Correct Answer - B
`tantheta=(-4)/3`
`rArr theta in2nd` quadrant or 4th eqyadrant
`rArr sintheta =pm4//5`
If `theta in 2nd` equadrant, `sintheta=4//5`
If `theta` in 4th quadrant, `sintheta=-4//5`


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