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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`.
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `y^4 –
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Perform the following divisions: `(ax^3 – bx^2 + cx) -: (–
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Factorise the expressions and divide them as directed: `(x^2 – 22x + 117) -: (x –
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Factorise the expressions and divide them as directed: `(2x^3 – 12x^2 + 16x) -: (x – 2) (x –
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Factorise the expressions and divide them as directed: `(3x^4 – 1875) -: (3x^2 –
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The sum of first n natural numbers is given by the expression `n^2/2+n/2`. Factorise this
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Verify the following: `(a + b + c) (a^2 + b^2 + c^2 – ab – bc – ca) = a^3 + b^3+ c^3 –
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
`(–10) xx (–10) xx (–10) xx (–10) =
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#tnf
0
votes
0
answers
In `2^n`, n is known
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
For a fixed base, if the exponent decreases by 1, the number
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
The value of `(2/5)^-2`
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
The reciprocal of `(2/5)^-1`
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
If y be any non-zero integer, then `y^0` is equal
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
For a non-zero integer x, `(x^4)^(–3)` is equal
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
50 =
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
The usual form of `3.41 xx 10^6` is
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
By multiplying `(5/3)^4` by ________ we get
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
The value of `3 xx 10^(-7)` is equal to
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
The value for `(–7)^6 -: 7^6` is
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
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