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if tantheta=(4)/(3), then the value of (...

if `tantheta=(4)/(3)`, then the value of `(3sintheta+2costheta)/(3sintheta-2costheta)` is

A

0.5

B

`-0.5`

C

`3.0`

D

`-3.0`

लिखित उत्तर

Verified by Experts

The correct Answer is:
c

`(3sintheta+2costheta)/(3sintheta-2costheta)`
divide numerator `&` denominator by `cos theta`
`=(3(sintheta)/(costheta)+(2costheta)/(costheta))/((3sintheta)/(cos theta)-(2cos theta)/(cos theta))[(sintheta)/(costheta)=tantheta]`
`=(3tantheta+2)/(3 tan theta-2)`
Put value of `tan theta`
`=(3xx(4)/(3)+2)/(3xx(4)/(3)-2)=(6)/(2)=3`
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