Evaluate
`(5/4)^2`

Evaluate: (1)^4, (1)^5‚ (1)^7, (-1)^2, (-1)^3, (-1)^4, (-1)^5 .

Evaluate int_(0)^(pi"/"2) (dx)/(4 + 5 cos x)

Evaluate int(1)/(5+4cos2theta)d theta

Find the values of 2^(4),2^(3) and 2^(7) verify whether 2^(4)xx2^(3)=2^(7) Find the values of 5^(2),5^(3) and 5^(5) and verify whether 5^(2)xx5^(3)=5^(5)

Evaluate int sqrt(16-25x^(2)) dx " on " ((-4)/(5),(4)/(5)).

Evaluate int sqrt(16-25x^(2)) dx on ((-4)/(5), (4)/(5)).

Evaluate int(2x - 5)/(3x^(2) + 4x + 5) dx .

Evaluate the determinants in Exercises 1 and 2. {:[( 2,4),( -5,-1) ]:}

Evaluate the integral int_(0)^(pi//2) (dx)/(4+5cosx )