[" 40"=2times2times2times5],[" (1) Barrel Sambanche Mrib Avakh काड़."],[[" (i) "32," (ii) "57],[" ( "" (vi) "208," (vil ) "765]]

(2^(2)times3^(4)times4)/(3times32),

1 times 2times3+2 times 3times4+3 times 4times5+.... =?

1 times 2times3+2 times 3times4+3 times 4times5+.... =?

(1/3times-1/2)times5/6 = (5/6 times 1/3)times-1/2

25^(32)times16^(-34)times5^(-2)times1024^(32)

Find the product: (i) 3/4 xx 5/7 , (ii) 5/8 xx (-3/7) , (iii) (-2/5) xx 8

Express the following in exponential form: (i) "6 times 6times6 times 6 (ii) t times t (iii) b times b times b times b times b times b (iv) 5 times 5times7 times 7times7 (v) "2 times 2times a times a (vi) a times a times a times c times c times c times c times d times 1

Evaluate the following : (i) 2/5 times 3/7" (ii) " 3/5 times 8/9" (iii) " 7 times 1""2/3 .

Evaluate (i) 49 xx 51 (ii) 30 xx 32

Evaluate : (xi) 20.8 xx 19.2