List of top Mathematics Questions on Plane asked in WBJEE

The locus of points(x,y) in the plane satisfying sin²x + sin²y =1 consists of

Evaluate:$\underset{x\to -2}{lim}\frac{x^5+2x^4+x^2+3x+2}{x^4+2x^3+3x^2-5x-22}$

If in a triangle ABC, sin A, sin B, sin C are in A.P., then