`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 (a) 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

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

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

If s e c^2theta=(4x y)/((x+y)^2) is true if and only if................... (a) x+y!=0 (b) x=y , x!=0 (c) x=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

Prove that sin^2theta=(x+y)^2/(4xy) is possible for real values of x and y only when x = y , y!=0 and x!=0 .

Statement I: sec^2theta=(4x y)/((x+y)^2) is positive for all real values of x\ a n d\ y only when x=y because Statement II: t^2geq0AAt in R\ a. A b. \ B c. \ C d. D

If sec^(2)theta=4x(y)/((x+y)^(2)) then how many pairs of x and y are there for which the condition x!=y is true

Prove that sin^(2)theta=((x+y)^(2))/(4)xy is possible for real values of x and y only when x=y and x!=0.