2x^(2)-5^(2)=5^(2)

((5x+2)^(2)+(5x-2)^(2))/((5x+2)^(2)-(5x-2)^(2))=(13)/(12) then find x

Factorise : (2x^(2)+5x)(2x^(2)+5x-19)+84

The value of the determinant |{:(1 ,(5^(2x)-5^(-2x))^(2),(5^(2x)-5^(-2x))^(2)),(1 ,(6^(2x)-6^(-2x))^(2),(6^(2x)-6^(-2x))^(2)),(1 ,(7^(2x)-7^(-2x))^(2),(7^(2x)-7^(-2x))^(2)):}| is

If x=5+2 "sec"thetaandy=5+2 "tan"theta then (x-5)^(2)=(y-5)^(2) is equal to

Simplify the following using suitable identities: (2x+5)^(2)-(2x-5)^(2)

Evaluate the following limit: (lim)_(x rarr a)((x+2)^(5/2)-(a+2)^(5/2))/(x-a)

Find the angle between the straight lines represented by 2x^(2)+5xy+2y^(2)-5x-7y+3=0