" 9.Make "b" the subject for the formula "f=(a+b)/(a)

Make f as the subject of the formula

Make b as the subject the formula f=(a+b)/(a)

The focal length of a less is given by the formula (1)/(f)=(1)/(u)+(1)/(v) . Make f as the subject of the formula. if u=20cm and v=30, then find f. The following steps are involved in solving the above problem. Arrange them in sequential order. (A) Given (1)/(f)=(1)/(u)+(1)/(v) (B) rArr f=(uv)/(u+v) (C) f=(20xx30)/(20+30)=(600)/(50)=12 cm. (D) rArr (1)/(f)=(v+u)/(uv)

The total surface area of a cuboid is S=2(lb+bh+lh) . Make l as the subject of the formula.

The volume of a cone is V=(1)/(3)pir^(2)h . Make r as the subject of the formula.

From the formula from the following table. Make a the subject of the formula. {:(a,25^(@),34^(@),75^(@),4^(@),89^(@),85^(@)),(b,65^(@),56^(@),15^(@),86^(@),1^(@),5^(@)):}