15.Write the multiplicative inverse of :
(a) 3-4 (b) 9-9
16. Simplify : (a) [(1/2)0+(1/5)3+(2/3)2] (b) [(9/5)-8X(5/9)-5]
17. Evaluate : {(1/3)-1-(1/4)-1}-1
18. Simplify: [(1/4)4+(1/4)3]X[(3/5)12(3/5)5].
19.Express in exponential form: (a) 675 (b) 864 (c) 450
20. Use law of exponents,simplify
(a) (72)373 (b) (20+30)(40+60) (c) 73x5-6/54x35
Answers
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Answer:
a) +1
b) 0
16. a) [1+1/125+4/9]
=
Step-by-step explanation:
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