The value of the Integral\nHint:\np/2\n(ax3\n-p/2\ncos x + b sin x + c)dx, depends on how many parameters among (a , b , c).\nIntegral of an odd function over the interval [-a,a] is zero

x3 odd , sinx odd will become zero only c will remain in integral.

x^3 is odd--->0
sinx is odd--->0
only c will left in integration in integration, hence it depends only on c.

Sher Mohammad
B.Tech, IIT Delhi