We should have sympathy for the less fortunate. We should sympathise ______________ (Complete the sentence.)
We should sympathise with the less fortunate.
Give reasons why :
(a) Travelling bags have wheels.
(b) Iron pipes are fitted on an inclined plane for pushing up heavy loads.
(c) We should take care of machines.
(d) We should use a pulley to draw water from a well.
To find the zeroes of a quadratic polynomial , should we split the middle term or should we use the identity (x+a)(x+b)=x2+(a+b)x+ab?