the equation of aa line which passes through (acos^3theta,asin^3theta) and perpendicular to line xsec theta + cosec theta = a is what

please answer this question

just put the points in the equation of line and satisfy it it will easily be proved that the line passes through that point

or else find the slope of line xsec? +ycosec? = a the slope of line  could be found out by m1 *m2 = -1

and we know how to find out the equation of line whose slope is given and the points from which it is

passing .