CDS 2009 PYQ with Answer — The value of cosec 2 θ– 2 + sin 2 θis always

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Atlas Essay Optional Vistaar

UPSC CDSCombined Defence Services Overview

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Overview Daily Quiz Mock Tests All-India PYQs Practice

CDS 2009 · Elementary Mathematics (CDS-II)Q16

Back to the full 2009 paper

2009 · Q16

The value of cosec 2 θ– 2 + sin 2 θis always

Elementary MathematicsTrigonometry

Aless than zero
Bnon-negative
Czero
D1

Explanation

Expression equals (cos²θ/sinθ)² ≥ 0.

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