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Q. 10. If tanecosec?e - sec? ofind the value ofcosec e + sec? 0sin AQ. 11. If cosec A=2, find the value of COLA+,1+cos A |
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Answer» tanx=1/V7; cosec^2x - sec^2x/ cosec^2x+ sec^2x=(V7/3)^2-(V7/4)^2/ (V7/3)^2+(V7/4)^2=7/9-7/16/ 7/9+7/16=7-7/16(9)/14/16(9)=14/1 |
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