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Math class 9th exponents and powers. Please send the answer of (vi) questions

Math class 9th exponents and powers.  Please send the answer of (vi) questions

Question Image
Grade:9

1 Answers

Harshil goyal
26 Points
2 months ago
((5-1 * 72)/(52 * 7-4))7/2 can be written as ((76)/(53))7/2  = 721*5-21/2
((5-2 * 73)/(53 * 7-5))-5/2  can be written as (55)/(78))5/2 = 525/2*7-20
 
ON MULTIPLYING BOTH
71*5-4/2=71*5-2
Finally General answer is 7/25

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