cosecA(1+cosA)(cosecA-cotA)=1 I don't know this answer????
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LHS= CosecA(1- cosA)(cosecA +cot A)
= ( cosecA- cosecA cosA) (cosecA + cotA)
= ( cosecA -cot A) ( cosecA + cotA)
[ since, cosecA cosA= cosA/ sinA= cot A]
= cosec2A - cot2A
= 1
= RHS
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Answer:
Step-by-step explanation:
by taking L.H.S
=cosecA (1+cosA )(cosecA -cotA ),
=(cosecA+cosecA*cosA)cosecA-cotA),
=(cosecA+cotA)(cosecA-cotA),
=cosec²A-cot²A=1,
by this L.H.S=R.H.S..
HOPE IT IS HELPFUL FOR U....
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