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CBSE Class 12-science Answered

If begin mathsize 12px style f open parentheses x close parentheses equals fraction numerator 1 minus x over denominator 1 plus x end fraction space t h e space d o m a i n space o f space f to the power of negative 1 end exponent open parentheses x close parentheses space space i s space i. R space space space space space space space i i. R minus open curly brackets negative 1 close curly brackets space space space space space i i i. open parentheses negative infinity comma negative 1 close parentheses space space space space space space space i v. space open parentheses negative 1 comma infinity close parentheses end style
Asked by sunil2791 | 24 Jun, 2017, 03:20: PM
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begin mathsize 16px style straight f left parenthesis straight x )= fraction numerator 1 minus straight x over denominator 1 plus straight x end fraction Find space inverse space of space the space function straight y equals fraction numerator 1 minus straight x over denominator 1 plus straight x end fraction straight y open parentheses 1 plus straight x close parentheses equals 1 minus straight x straight y plus xy equals 1 minus straight x straight x plus xy equals 1 minus straight y straight x equals fraction numerator 1 minus straight y over denominator 1 plus straight y end fraction rightwards double arrow straight y equals fraction numerator 1 minus straight x over denominator 1 plus straight x end fraction Hence comma space straight x not equal to negative 1 Domain space is space straight R equals open curly brackets negative 1 close curly brackets end style
Answered by Sneha shidid | 26 Jun, 2017, 01:15: PM

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CBSE 12-science - Maths
2+2=?
Asked by surajkumar85440 | 23 Nov, 2021, 10:30: AM
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CBSE 12-science - Maths
In R - {-1}, there is a binary operation '*' defined by a*b = a+b - ab, for all a,b belongs to R - {-1}. Is R - {-1} group?
Asked by goswamineha2611 | 31 Aug, 2020, 06:32: PM
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CBSE 12-science - Maths
Please answer this question 
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Asked by alanpeter9611 | 12 Feb, 2019, 06:08: PM
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CBSE 12-science - Maths
 Consider the binary operation * on the set {1, 2, 3, 4, 5} defined by a*b=HCF of a andb. Write the operation table of the operation *. Is * commutative? Justify. Also, compute: (a) (2*3)*5 (b) (2*3)*(4*5). 
Asked by niharikapabba2605 | 12 Oct, 2018, 07:21: PM
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CBSE 12-science - Maths
 Show that the binary operation * on A = R – {-1} defined as a*b = a + b + ab for all a,b belongs to A is commutative and associative on A. also find the identity element of  * in A and prove that every element of A in invertible mention each and every formula and minute details
Asked by haroonrashidgkp | 07 Jun, 2018, 11:03: AM
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CBSE 12-science - Maths
Define binary operation * on a set X.
Asked by Topperlearning User | 25 Apr, 2016, 08:38: AM
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CBSE 12-science - Maths
A binary operation is defined by x * y = 2x – 3y. Find *(3, 2).
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Maths
A binary operation is defined by a * b = ab/2. Is the binary operation commutative?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Maths
A binary operation defined by a * b = ab. Is the binary operation associative?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Maths
For the binary operation * defined by a * b = a + b + 1. Find the identity element for operation *.
Asked by Topperlearning User | 26 Apr, 2016, 11:58: AM
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