Indices Class 7 Maths Chapter 6 Practice Set 27 Solutions Maharashtra Board

Indices Class 7 Maths Chapter 6 Practice Set 27 Solutions Maharashtra Board

Std 7 Maths Practice Set 27 Solutions Answers

Question 1.
Simplify:
i. 74 × 72
ii. (-11)5 × (-11)2
iii. (67)3×(67)5
iv. (−32)5×(−32)3
v. a16 × a7
vi. (P5)3×(P5)7
Solution:
i. 74 × 72
= 74+2
= 76

ii. (-11)5 × (-11)2
= (-11)5+2
= (-11)7

iii. (67)3×(67)5
=(67)3+5=(67)8

iv. (−32)5×(−32)3
=(−32)5+3=(−32)8

v. a16 × a7
= a16+7
= a23

vi. (P5)3×(P5)7
=(P5)3+7=(P5)10