{"result":{"text":"begin mathsize 14px style negative integral from 0 to pi divided by 2 of open parentheses n minus 1 close parentheses open parentheses sin x plus cos x close parentheses to the power of n minus 2 end exponent times open parentheses cos x minus sin x close parentheses open parentheses sin x minus cos x close parentheses d x end style"},"status":"ok"}