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If (cot alpha+cot(270^(@)+alpha))/(cot ...

If `(cot alpha+cot(270^(@)+alpha))/(cot alpha-cot(270^(@)+alpha))-2 cos(135^(@)+alpha)cos(315^(@)-alpha)=lambda`, where `alpha in (0, (pi)/(2))`, then `lambda=`

A

0

B

1

C

2

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
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VK JAISWAL ENGLISH-COMPOUND ANGLES-Exercise-5 : Subjective Type Problems
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  19. If y=(sin theta+"cosec" theta)^(2) +(cos theta+sec theta)^(2), then m...

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  20. If tan20^(@)+tan40^(@)+tan80^(@)-tan60^(@)=lambda sin40^(@), then lamb...

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  21. If K^(@) lies between 360^(@) and 540^(@) and K^(@) satisfies the equa...

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