Practice problem
Select all expressions below that are equivalent to sec2x+csc2xcsc2xsec2x.\frac{\sec^2x+\csc^2x}{\csc^2x\sec^2x}.csc2xsec2xsec2x+csc2x.
1csc2(x)−1sec2(x)\frac{1}{\csc^2(x)} - \frac{1}{\sec^2(x)}csc2(x)1−sec2(x)1
sin2(x)−cos2(x)\sin^2(x)-\cos^2(x)sin2(x)−cos2(x)
csc2(x)sec2(x)\csc^2(x)\sec^2(x)csc2(x)sec2(x)
1csc2(x)+1sec2(x)\frac{1}{\csc^2(x)} + \frac{1}{\sec^2(x)}csc2(x)1+sec2(x)1
sin2(x)+cos2(x)\sin^2(x)+\cos^2(x)sin2(x)+cos2(x)
111
Type a concept, like “slope” or “photosynthesis”.
