Question

2cos acos b

find Vali of - tan90.......

integral of 4x+7(root of x^2+4x+13)dx

integral of 4x+7(root of x^2+4x+13)dx

give me answer quickly 

Sides of triangle are given below determine which of the term are right triangle in case of right triangle write the length of hypotenuse 

7cm 24cm 25cm

Evaluate: ∫(𝒆 𝟐−𝟑𝒙 + 𝒙 𝟐 + 𝟏) 𝟑 𝟏 𝒅𝒙 𝐚𝐬 𝐚 𝐥𝐢𝐦𝐢𝐭 𝐨𝐟 𝐚 𝐬𝐮�

Is multiplication a binary operation on the set {0}