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The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x+2=0 then X= -2

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How many words can be formed using word BHARAT and how many can be formed if the word starts with B and end with T

Posted by Lavita Sokhal 6 years, 11 months ago

CBSE > Class 11 > Mathematics

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Om Agarwal 6 years, 11 months ago

a 6!/2! b 4!/2!

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Aasta Chouhan 6 years, 11 months ago

A) 6! B) 4!

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Tanu Singh 6 years, 11 months ago

Here,the numbers of word which formed by the words BHARAT is 5 factorial without meaning

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Let a is not =0 and p (x) be a polynomial of degree greater than 2. If p(x) leaves remainder a and-a when divided by x+a and x-a the remainder when p(x) is divided by x^2-a^2 is

Posted by Akanksha Kumari? 6 years, 11 months ago

CBSE > Class 11 > Mathematics

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What is the difference between log and antilog??

Posted by Akanksha Kumari? 6 years, 11 months ago

CBSE > Class 11 > Mathematics

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Ayushi Ayushi 6 years, 11 months ago

The anti-logarithm of a number is the inverse process of finding the logarithms of the same number. If x is the logarithm of a number y with a given base b, then y is the anti-logarithm of (antilog) of x to the base b.

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Ayushi Ayushi 6 years, 11 months ago

Logarithms A logarithm of a number is the power to which a given base must be raised to obtain that number. The power is sometimes called the exponent. In other words, if by = x then y is the logarithm of x to base b. For example, if 24 = 16, then 4 is the logarithm of 16 with the base as 2. We can write it as 4 = log 2 = 16.

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Evaluate lt x approach to 0 log(1+3x)/3^x -1

Posted by Lavita Sokhal 6 years, 11 months ago

CBSE > Class 11 > Mathematics

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The 1st term of a GP is 1 the sum of third and fifth term is find the common ratio of the Gp

Posted by Nissy Sajan 6 years, 11 months ago

CBSE > Class 11 > Mathematics

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x³+4x²+4x+3/x²+2x-3

Posted by Yash Kumar 6 years, 11 months ago

CBSE > Class 11 > Mathematics

2 answers

Prakhar Jadaun ? 6 years, 11 months ago

Quotient : x+2 ......... Remainder : -3x +9

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Ram Kushwah 6 years, 11 months ago

what is question

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Show that x^2+cosx is an even function?

Posted by Mohammad Rizwan 6 years, 11 months ago

CBSE > Class 11 > Mathematics

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Find the 4th term in AP whose sum is 20 and the sum of whose square is 120.

Posted by Nissy Sajan 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Yogita Ingle 6 years, 11 months ago

Let the terms be a – 3d, a – d, a + d, a+3d
Sum of the terms = (a – 3d) + (a – d) + (a + d) + (a + 3d) = 20
4a = 20
a = 5
Sum of the squares of the term = (a – 3d)² + (a – d)² + (a + d)² + (a + 3d)² = 20
a² – 6ad + 9d² + a² – 2ad + d² + a² + 2ad + d² + a² + 6ad + 9d² = 120
4a² + 20d² = 120 – – – – – – – – – – – – (a)
Substituting a = 5 into (a)
4(52) + 20d² = 120
100 + 20d²= 120
d = ± 1
d = ± 1
Thus, the four numbers are:
Taking d = 1
(a – 3d), (a – d), (a + d), (a + 3d) = (5 – 3), (5 – 1), (5 + 1), (5 + 3)