Without evaluating state if the answer is positive or negati

Without evaluating, state if the answer is positive or negative. Evaluate the following. Evaluate the following.

Solution

product of even nos of -ve signs = +ve

product of odd nos. of -ve sign = -ve

(-2/3)^2 ---> +ve

-(-2/3)^2 ---> -ve

-(2/3)^3 ---->-ve

-(2/3)^2----> -ve

-( -2/3)^3 ---> - *(-) = +ve

( -2/-3)^5 ---> -2^5/-3^5 = -/- = +ve