[" Check whertibr "6^(4)" can end swib the digit "0" for any natural mumber "n" ."],[" Explain why "7times11times13+13" and "7times6times5times4times1times2times1]

Explain Why 7times11times13times+13 and 7times6times5times4times3times2times1times+5 are composite number.

Explain why (7 times 11 times 13)+13 " and " (7 times 6 times 5 times 4 times 3 times 2 times 1)+5 are composite numbers.

Evaluate: (-3) times (-4) times (-5) times (-6) times 7

Evaluate : a^7 times a^4 times a^(-6 ) times a^0

Evaluate: (-3) times (-4) times (-6) times 7 times (-2)

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

(6^(3)times7^(4)times8^(5))/(4^(3)times9^(2)times16)

Evaluate : 6/8 times 7/3 times 4/2 times 1/5 =

Evaluate : 2/5 times 3/7 - 1/6 times 3/2 + 1/4 times 2/5 =

(1)/(1times3)+(1)/(3times5)+(1)/(5times7)+(1)/(7times9)+(1)/(9times11)+(1)/(11times13)