Evaluate
`2^(4)`

Evaluate (5/4)^2

Evaluate (1(1)/(4))^2

Evaluate int(x^(2))/(x^(4)+x^(2)+1)dx

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 (dx)/(4x^(2) -4x -7)

Evaluate int_(0)^(2) sqrt(4-x^(2))dx

Find the values of 2^4, 2^3 and 2^7 and verify whether 2^4 xx 2^3 = 2^7 .

Evaluate (tan^2 60 + 4 cos^2 45 + 3 sec^2 30 + 5 cos^2 90)/(cosec 30 + sec 60 - cot^2 30)