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*(1)sin19/sin71-cos11/cos19=........................*

* (2) show that,√3.cos23 - sin23/2=cos53.*

*(3)Prove that cosФ. cosecФ = cotФ *

2
*(1)sin19/sin71-cos11/cos19=........................*

*(2) show that,√3.cos23 - sin23/2=cos53.*

*(3)Prove that cosФ. cosecФ = cotФ*

by deeenbe

wait a while..

yeah they r correct

sry add teta next to it

where?

next to cos n sin in the answer

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