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Q.

Assertion (A):- The general solution of 

Sinx=-1 is +(-1)n3π2,nz

Reason (R):- The principle solution of Sinx=0 lies in -π2,π2

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a

A is false but R is true

b

A is true but R is false

c

Both A and R are true and R is correct explanation of A

d

Both A and R are true but R is not the correct explanation of A

answer is A.

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Detailed Solution

(A)   sin x=-1=sin-π2               x=+(-1)n-π2 (R)   sin x=0=sin 0               x=0        principle value of sin x=k       x lies in -π2, π2 where k-1, 1      A is false R is true.

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