Question

y= Cosec A + Cot A, Prove that 2dy/da + y²+ 1 =0
It is a derivative based question​

Answer 1

Answer:

if `y = cosec @ + cottheta `, prove that `2(dy)/(d theta) + y^2 + 1 = 0

Step-by-step explanation:

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Answer 2

Answer:

dy/da = (-cotA.cosecA) + (-cosec²A)

Step-by-step explanation:

to prove 2dy/da = y²+1=0

dy/da = -cotA.cosecA - cosecA.cosecA

take - cosec A common

= -cosecA (cotA+cosecA)

= -cosecA(y)

multiply both sides by 2

(shortened)

so we get 2dy/da = 1+y²