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If alpha and beta are zeroes of polynomail 4xcube +3x -7

Posted by Muskan Rajput 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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Prove that cos45- sin45=0

Posted by Anshu Yadav 3 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Soumya Singh 3 years, 5 months ago

We know that cos 45=1/√2 and sin 45=1/√2 Therefore 1/√2-1/√2=0 Hence it is proved

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Check which of the following equations are quadric equation or not: x+x/2=3

Posted by Jahnavi Thakur 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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Prove that root 2 is an irrational no

Posted by Deepak Yadav 3 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Emaan Arora 3 years, 5 months ago

Let √2 is an irrational number Let √2=p/q (where p and q are integers and q is not equal to 0) -1 Let a/b is the lowest form of p/q So,p/q=a/b (where a and b are co- prime numbers) Putting in 1 √2=a/b Squarring both side (√2)^2 = (a/b)^2 2=a^2/b^2 a^2 = 5b^2 So,2 is the factor of a^2 also 2 is the factor of a Let a=2m( where m is some integer) (2m)^2= 2b^2 4b^2=2b^2 4b^2/2 = b^2 2b^2 = b^2 b^2=2b^2 So,2 is the factor of b^2 also 2 is the factor of b Here,2 is the factor of both a and b .This contradict our supposition that √2 is an rational number is wrong. Hence ,√2 is an irrational number

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If p, q are prime positive integers, prove that √p + √q is an irrational number. 10.

Posted by Mahak Kewat 3 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Shiv Chahal 3 years, 5 months ago

Please tell the answer

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65m-113n

Posted by Mayank Kain 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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Check whether (5,-2),(6,4) and (7,-2) are the vertices of an isosceles triangle. By using distance formula

Posted by Anchal 10Th E 3 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Bushra Manzoor 3 years, 5 months ago

Yes ,the given sides are the sides of an isosscless traingle

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(x-3)^2=(2x-5)(3-x) check whether it is a quadratic equation

Posted by Hunny H.Y 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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126 HcF

Posted by Manish Singh 3 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Himanshu Yadav 3 years, 5 months ago

126-2,3,3,7 HCF=3×2×7 =42ans

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Sarika Sarika 3 years, 5 months ago

HCF = Highest Common Factor. Factors of 126=2,3,3,7 So, H.C.F= 3

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0 is a real number but why

Posted by Manish Singh 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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Sum and product of two zeroes of x ^ 4 - 4x ^ 3 - 8x ^ 2 + 36x - 9 are 0 and - 9 respectively. Find the sum and product of its other two zeroes.

Posted by Srushti Jogur 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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A number when divided by 61gives 27 as quotient and 32 as remainder find the number

Posted by Raunak Afroj 3 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Rawal Singh 3 years, 5 months ago

Answer is 1679 solution : 61×27 + (32)=1647+32=1679

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Find whether decimal expansion of 11/64 is a terminating or non-terminating decimal. If it terminates, find the number of decimal places its decimal expansion has.

Posted by Ashi Ashi 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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Prove that √5 is an irrational number.

Posted by Anshul Srivastava 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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What is the hcf of 56

Posted by Anuj Kumar 3 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Shivani Yadav 3 years, 5 months ago

Your question is incompleted

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2+2-4+5+10-24

Posted by Nisha Kumari 3 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Shivani Yadav 3 years, 5 months ago

-9

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How to find integer of polynomial

Posted by Divyanshu Singhal 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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Prove that (5+2root5) hole square 2 is irrational

Posted by Sonakshi Meena Meena 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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Find the values of x and y in the given rectangle if its length is cube root of 2197 and width is one less than the fourth multiple of first prime number It's length given is- x+ 3y And breadth is 3x +y

Posted by Smitarani Pradhan 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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Find the values of x and y in the given rectangle if its length is cube root of 2197 and width is one less than the fourth multiple of first prime number

Posted by Smitarani Pradhan 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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2y^2 + 12y - 432

Posted by Arpita Mangla 3 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Ansh Tanwar 3 years, 5 months ago

2y ×2y+12y-432 4y+12y-432 16y=432 y=432÷16 y=27

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4xsquare-4asquarex+(apower4-bpower4) =0

Posted by Khushi Yadav 3 years, 5 months ago

CBSE > Class 10 > Mathematics

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2x-3y=5 2px-(2p+3)y=5p Find the value of p for which the following system of linear equation has infinity many solution

Posted by Hemu Meena 3 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Account Deleted 3 years, 5 months ago

2x=5+3y (Let assuming y=1) =>2x=5+3(1) =>2x=8 =>x=8/2 =>x=4 Now putting x=4 in 2px-(2p+3)y=5p =>2p(4)-(2p+3)1=5p =>8p-2p-3=5p =>6p-3=5p =>6p-5p=3 =>p=3 Thus, value of x=4 and value of p=3.

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Account Deleted 3 years, 5 months ago

P=3

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Check whether 4n can end with the digit 0 for any natural number

Posted by Pratham Sharma 3 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Hemu Meena 3 years, 5 months ago

If the 4n is end with zero it has 5 and 0 as a prime factorisation but it 2 and 2 as a prime factor so it is end with digit zero

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Find the value of Alpha / beta + beta upon Alpha if in the polynomial X square + bx + c

Posted by Arnav Jain 3 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Arpita Mangla 3 years, 5 months ago

Take LCM of alpha and beta LCM will be alpha beta Beta and beta will be cancelled then put + sign then alpha and alpha will be cancelled Equation: alpha + beta divide by (/) alpha beta Then apply sum of zeros and product of zeros Then a and a will be cancelled remaining -b/c And answer will be -b/c

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Show that the following numbers are irrational (i) 3/(2√5) (ii) 4 +√2

Posted by Harshkumar Jain 3 years, 5 months ago

CBSE > Class 10 > Mathematics