EXERCISE 12.2 ,Q NO. 7

Evaluate: 7.12 xx 7

Express each of the following mixed recurring decimals in the form p/q . (i) 4. 3 2\ (ii) 15. 7 12

Given : 1176 = 2^(p) . 3^(q) . 7^(r ) . Find : the numerical values of p,q and r.

Class 12 ncert maths solution chapter vector algebra exercise 10.2 Qno.4,5

If p + q = 7 and pq = 12 , then will is the value of 1/(p^2) + 1/(q^2) ?

The 12 numbers, a _(1), a _(2)………, a _(12) are in arithmetical progression. The sum of al these numbers is 354. Let P = a _(2) + a _(4) + ……………a _(12) and Q = a _(1) + a _(3) + ……..+a _(11) . If the ratio P :Q is 32:27, the common difference of the progression is

Three solutions P, Q and R have pH value of 3.5, · 5.2 and 12.2 respectively. Which one of these is a : Weak acid ?

Three solutions P, Q and R have pH value of 3.5, · 5.2 and 12.2 respectively. Which one of these is a : Strong alkali ?

If (p-q)/(2)=3 and rp-rq=12 , then r=

If P=(a,b,c) and Q=(1,2) , then the total number of relations P to Q are not functions is