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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `p^5 –
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)`. `9x^2 – (3y +
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Perform the following divisions: `(– qrxy + pryz – rxyz) -: (–
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The curved surface area of a cylinder is `2pi (y^2 – 7y + 12)` and its radius is (y – 3). Find the height of the cylinder (C.S.A. of cylinder
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The height of a triangle is `x^4 + y^4` and its base is 14xy. Find the area of the
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
If `a^2 + b^2 = 74` and ab = 35, then find a +
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Verify the following: `(a + b) (a + b) (a + b) = a^3 + 3a^2b + 3ab^2 +
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Find the value of a, if `9a = 76^2 –
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
What should be added to `4c (– a + b + c)` to obtain `3a (a + b + c) – 2b(a – b +
asked
Jan 18, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
`(-4)^4 xx(5/4)^4`
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
Simplify
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#sub
0
votes
0
answers
The value of `3^5 -: 3^(–6)`
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
The value of `(-2/3)^4` is equal
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
If x be any non-zero integer, then `x^–1` is equal
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
If x be any integer different from zero and m be any positive integer, then `x^–m` is equal
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
Which of the following is not the reciprocal of `(2/3)^4`
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#mcq
0
votes
0
answers
`3^5 -: 3^–6` can be simplified as
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
The value of `[2^(–1) xx 3^(–1)]^(–1)` is
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
By solving `(6^0 – 7^0) xx (6^0 + 7^0)` we get
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#fib
0
votes
0
answers
The multiplicative inverse of `(3/2)^2` is not equal to
asked
Jan 18, 2022
in
8th-maths
marks1
chapter8
#tnf
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