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sqrt3 cosec 20^(@) -sec 20^(@)= (sqrt3...

`sqrt3 cosec 20^(@) -sec 20^(@)=`
`(sqrt3)/(sin(20^(@)))-(1)/(cos (20^(@)))=`

A

2

B

`(2 sin 20^(@))/(sin 40^(@))`

C

4

D

`(4 sin 20^(@))/(sin 40^(@))`

Text Solution

Verified by Experts

The correct Answer is:
C
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((sqrt(3))/(sin20^(@)-)(1)/(cos20^(@)))=4

Q.sqrt(3)cos ec20^(@)-sec20^(@)=

sqrt(3)cos sec20^(0)-sec20^(@)

sqrt(3)" cosec "20^(@)-sec20^(2)=?

sqrt(3)cot20^(@)-4cos20^(@)=

4cos20^(@)-sqrt(3)cot20^(@)

Prove that sqrt(3) " cosec "20^(@)-sec 20^(@)=4

solve 4cos20^(@)-sqrt(3)cot20^(@)

TARGET PUBLICATION-TRIGONOMETRIC FUNCTIONS OF COMPOUND ANGLES -COMPETITIVE THINKING
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