evaluate the following (9 upon 10) upon -4÷ (9 by 10) upon -6
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Answered by
8
Answer:
81/100
Step-by-step explanation:
As we know,
(a)^m ÷ (a)^n = (a)^m-n
(9/10)^-4 ÷ (9/10)^-6
= (9/10)^{-4 - (-6)}
= (9/10)^(6-4)
= (9/10)^2
= 81/100 Ans.
Answered by
3
Answer:
9/10= 10/9^4= 10×4/9×4= 40/36
10/9^6= 10×6/9×6= 60/54
40/36 ÷60/54 LCM of 36,54 = 108
40×3 = 120 ,36×3 =108
36 ×2=72, 54×2=108
120/108 - 72/108
= 48/108 =2.25.
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