Sec^6x(secxtanx)-sec^4(secxtanx)=se c^5xtan^3x
verify the trigonometric identity

I guess you mean

On the left side, we have a common factor of , so that

Recall that

from which it follows that

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .