If `a cos theta + b sin theta =4 and a sin theta- b cos theta = 3 " then" a^(2) + b^(2)` is equal to

If x=a cos theta + b sin theta and y=a sin theta - b cos theta. then a ^(2) +b^(2) is equal to

If x=a cos theta + b sin theta and y=a sin theta - b cos theta. then a ^(2) +b^(2) is equal to

If a cos theta+b sin theta=3 and a sin theta-b cos theta=4 then a^(2)+b^(2) has the value

If a cos theta+b sin tan theta=3 and a sin theta-b cos theta=4, then a^(2)+b^(2) has the value

If acos theta+bsin theta=4 and a sin theta-b cos theta=3 ,then find the value of a^(2)+b^(2)

If a cos theta - b sin theta =c, " then" a sin theta + b cos theta is equal to

If a cos theta + b sin theta = c " then " (a sin theta - b cos theta )^(2) =

If a cos theta+b sin theta=m and a sin theta-b cos theta=n, Prove that a^(2)+b^(2)=m^(2)+n^(2)

If a cos theta+b sin theta=m and a sin theta-b cos theta=n, prove that a^(2)+b^(2)=m^(2)+n^(2)

If a cos theta - b sin theta = c, prove that a sin theta + b cos theta = pm sqrt(a^(2) + b^(2) - c^(2)) .