[" the solue the equalion "],[qquad 1+4+7+10+cdots+x=287]

Solve the equation (x+1) + (x+4)+ (x+7) + cdots + (x+28) = 155.

General solution of the equation tan theta + tan 4 theta + tan 7 theta = tan theta cdot tan 4 theta cdot tan 7 theta "is" theta =

General solution of the equation tan theta + tan 4 theta + tan 7 theta = tan theta cdot tan 4 theta cdot tan 7 theta "is" theta =

Check whether the following are solu tions of the equation 5x - 2y = 30 : (10, 10).

Check whether the following are solu tions of the equation 6x - 2y = 30 : (10, 15).

Check whether the following are solu tions of the equation 5x - 2y = 30 : (4, 10).

If N is the number of positive integral solutions of x_1 cdot x_2 cdot x_3 cdot x_4 = 770 , then

A lead bullet stopped on hitting an iron plate at a velocity of 300 m cdot s^(-1) . Find out the rise in temperature of the bullet, if the heat evolved is shared equally between the bullet and the plate. Given, J = 4 cdot 2 xx 10^(7) erg cdot cal^(-1) , specific heat of lead = 0.03 cal cdot g^(-1) cdot^(@)C^(-1) .