mcqs zyada tr defination sy ay thy... short question 1.write sum and difference formula for tan. 2.mean80 ,s.v=12,find c.v. 3.find slope of lien 2x-3y=12 4.median formual diya hova tha or btanna L,f,F yh ks k liye stand krty.. long question 1.five field where statistics contribute. 2.angles find krny thy... 3.find sin120 without using calculator.