Plz help me it is so important I promise that I will make you brinliest ok.......
Answers
Answer:
question no 3 ka 1
-3/4^-2×-6/5^-2
-4/3^2×-5/6^2
-16/9×-25/36
-4×-25
100
question no 4ka1
(3^-1+4^-1)^2
(1/3+1/4)^2
(7/12)^2
49/144
question no 5 ka 1
(7/4)^-3×(7/4)^-5=(7/4)^x-2
(7/4)^-3+(-5)=(7/4)^x-2
(7/4)^-8=(7/4)^x-2
-8=x-2
-8+(-2)=x
-10=x
question no 6ka 1
(-3/7)^-3÷(-3/7)^-4
(-3/7)^-3-(-4)
(-3/7)^-3+4
(-3/7)^1
its reciprocal=-7/3^1
question no 8ka1
(-3/2)^-3×x=(9/8)^-2
(-2/3)^3×x=(8/9)^2
-8/27×x=64/81
x=64/81÷-8/27
64/81×-27/8
x=-8/3
question no 9 ka 1
(5/4)^-2÷x=(1/2)^-3
(4/5)^2÷x=(2/1)^3
16/25÷x=8
16/25=8×x
16/25÷8=x
16/25×1/8=x
2/25=x
the questions are many so i solve 1 question of each one leaving some questions. plz mark me as brainlist plz.
Answer:
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Step-by-step explanation:
Answers are as follows:
question no 3 ka 1
-3/4^-2×-6/5^-2
-4/3^2×-5/6^2
-16/9×-25/36
-4×-25
100
question no 4ka1
(3^-1+4^-1)^2
(1/3+1/4)^2
(7/12)^2
49/144
question no 5 ka 1
(7/4)^-3×(7/4)^-5=(7/4)^x-2
(7/4)^-3+(-5)=(7/4)^x-2
(7/4)^-8=(7/4)^x-2
-8=x-2
-8+(-2)=x
-10=x
question no 6ka 1
(-3/7)^-3÷(-3/7)^-4
(-3/7)^-3-(-4)
(-3/7)^-3+4
(-3/7)^1
its reciprocal=-7/3^1
Q8 (i)
(-3/2)^-3×x=(9/8)^-2
(-2/3)^3×x=(8/9)^2
-8/27×x=64/81
x=64/81÷-8/27
64/81×-27/8
x=-8/3
Q9
(5/4)^-2÷x=(1/2)^-3
(4/5)^2÷x=(2/1)^3
16/25÷x=8
16/25=8×x
16/25÷8=x
16/25×1/8=x
2/25=x