a=18.9,d=2.5,n=?,an=3*6

Fill in the blanks in the following table , given that a is the first term, d the common difference and a_(n) the nth term of the A.P: (i) a=7, d=3, n=8, a_(n)=? (ii) a= - 18, n=10, a_(n)=0, d=? 0= -18+(10-1) d rArr 10d-d=18 9d=18 rArr d=(18)/(9)=2 d=2 (iii) a=? , d= -3, n=18, a_(n)= - 5 (iv) a= -18.9, d=2.5, n=?, a_(n)=3.6

In the formula a_(n) = 3.6, a = - 18.9, d = 2.5, n = ……………

Fill in the blanks in the following table , given that a is the first term , d the common difference and a_n the nth term of the AP : {:(a,d,n,a_n),(-18.9,2.5,ul,3.6):}

4m+3n=18.3m-2n=5

If A={1,2,3,4,5,6,7,8}\ a n d\ B={1,3,5,6,7,8,9},\ t h e n\ A-B={2,4},\ B-A={9}dot

If M={3,6,9,18,27} and N={1,3,9,27} then M cup N is

If M={3,6,9,18,27} and N={1,3,9,27} then M cup N is

If A = {1,2,3,4,5},B = {2,4,6,8} C = {3,6,9,12} , D = {6,12,18,24} Find A-B, C-B, A-D, B-C.

Write the following sets in the set builder form : D={-12,-9,-6,-3,0,3,6,9,12,15,18}

21^(7)xx21^(6.5)=21^(12.4)18.9b.4.4c..5.9d13.4