एक वेक्टर `vec A ` का x -अक्ष के साथ कोण `theta ` है। इसका x -घटक `A_(x)` तथा y -घटक `A_(y)` है। क्या `tantheta=(A_(y))/(A_(x))` सदा सत्य है?

Eq. mass of A_(x)B_(y) is

If x,y,z are in A.P and A_(1) is the A.M of x and y and A_(2) is the A.M of y and z then A.M of A_(1) and A_(2) is

If x != y and the sequences x, a_(1),a_(2),y and x,b_(1),b_(2) , y each are in A.P., then (a_(2)-a_(1))/(b_(2)-b_(1)) is

x,y and z are in A.P. A_(1) is the A.M. of x and y. A_(2) is the A.M of y and z. Prove that the A.M. of A_(1) and A_(2) is y.

Let the straight line y=k divide the area enclosed by x=(1-y)^(2) , x=0 and y=0 into two parts of areas, A_(1)(0 <= y <= k) and A_(2)(k <= y <= 1) such that (A_(1))/(A_(2))=7. Then (1)/(k) is equal to

If (x/a) + (y/b) = 3 and (x/b)-(y/a) = 9, then what is the value of x/y? यदि (x/a) + (y/b) = 3 तथा (x/b)-(y/a) = 9 है, तो x/y का मान क्या है? ,

यदि घनाभ के तीन पृष्ठों का क्षेत्रफल क्रमश: x, y तथा z है, तब इस घनाभ का आयतन क्या होगा?

If A_(n) is the area bounded by y=x and y=x^(n), n in N, then A_(2).A_(3)…A_(n)=