class 9 indices

Indices 8:43 AM

Saturday, July 11, 2020

Formula 1c)

1a)
=

1d)

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1f)
same base and divide so
1 k)
Using
1J

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Q 2 ) evaluate each of the following

Q 3 simplify the following expression
a)

=

4) A

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4b)

4E)

5l) b)

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5i)
k)

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5i)

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5l)

6b)

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6a

6 h)

6f )

Comparing power

6 j)

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x= -2

7a)
Comparing the power of 5
7 i)

7 g)

comparing power of a

7j)

7k)

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8c)
LHS

Solution value of

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Q 10 prove that the value of x obtain by solving

Also satisfy the equation
solution

x= 3
Putting the value of x in

Hence LHS=RHS proved

1) Find the ratio of 40 and 35
Solution :

required ratio is 8:7

2) If
Solution ,

solve

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.

Solve 3 )
when Rs 105 is divided into two parts in the ratio of 2:5 ,how much money will
be in the first parts ?
Solution,
Given ratio is 2:5
Required numbers are
Thus , from the given condition

Thus ,the two numbers are

1) If 1,a,5, and 15 are in proportion . Find the value of a.
Solution,
1,a,5, and 15 are in proportion
So,

2) What must be subtracted from each term of ratio 4:9 so that it may
become equal to 9:4 ?
Given ratio is 4:9
let must be subtracted from each term

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let must be subtracted from each term
So,
7) The ratio of two men's' present ages is 3:4 and this will after 7:9 after 4 .
What are the present age?
present ratio is 3:4 so present ages are 3x and 4x
According to condition

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