`sec^2 x=(4xy)/(x+y)^2` is true if and only if

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sec^2theta=4xy/(x+y)^2 is true if and only if

sin^2 theta= (4xy)/(x+y)^2 is true if and only if (A) x-y!=0 (B) x=-y (C) x+y!=0 (D) x!=0,y!=0

The given expression sec^2 theta =(4xy)/((x+y)^(2)) is true if and only if :

"sec"^(2) theta = (4xy)/((x + y)^(2)) is true if and only if-

If sec^(2)theta=(4xy)/((x+y)^(2)) is true if and only if x+y!=0( b) x=y,x!=0(c)x=y(d)x!=0,y!=0

sec^(2)theta=(4xy)/((x+y)^(2)) is true if and only if x+y!=0 (b) x=y,x!=0x=y( d ) x!=0,y!=0

sin^(2)theta=(4xy)/((x+y)^(2)) is true if and only if (A)x-y!=0(B)x=-y(C)x=y(D)x!=0,y!=0

sec^2theta=(4x y)/((x+y)^2) is true if and only if x+y!=0 (b) x=y ,x!=0 x=y (d) x!=0,y!=0

If s e c^2theta=(4x y)/((x+y)^2) is true if and only if