Math, asked by dassuman0102p8pe8m, 4 days ago

# step by step and prove it

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AbhishGS: wait ...I can try to find .

1
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Akankshamathur2: kucu clear nhe hai
Akankshamathur2: kuch
Aryan2524: Andaza lga ke rough me try kr
Akankshamathur2: ok
dassuman0102p8pe8m: ha bhi kuch bhi clear e nahi hai
0
cosec A + cot A - 1 / cot A - cosec A + 1
we know that,cosec ² A - cot ² A = 1
substituting this in the numerator
cosec A + cot A -(cosec ² A - cot ² A) / (cot A - cosec A + 1)
x²-y²= (x+y)(x-y)
cosec A + cot A - (cosec A + cot A) (cosec A - cot A) / (cot A - cosec A + 1)
taking common
(cosec A + cot A)(1-cosec A + cot A) / (cot A - cosec A + 1)
cancelling like terms in numerator and denominator
we are left with cosec A + cot A
= 1/sin A + cos A/sin A
= (1+cos A) / sin A
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