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-2sqrt3 and 9

Posted by Shifa Laddhani 9 months, 2 weeks ago

CBSE > Class 10 > Mathematics

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Solve for x: 2(x+2/2x-3) - 9(2x-3/x+2) = 3; given that x ≠-2, x ≠3/2.

Posted by Cheshta Garg 9 months, 2 weeks ago

CBSE > Class 10 > Mathematics

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Solve for x: 2(x+2/2x-3) - 9(2x-3/x+2) = 3; given that x ≠-2, x ≠3/2

Posted by Cheshta Garg 9 months, 2 weeks ago

CBSE > Class 10 > Mathematics

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Solve for x:√3x^2+10x+7√3=0.

Posted by Cheshta Garg 9 months, 2 weeks ago

CBSE > Class 10 > Mathematics

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A train travelling at a uniform speed for 360 km,would have taken 48 minutes less to travel the same distance if its speed were 5 km/hour more. Find the original speed of the train.

Posted by Cheshta Garg 9 months, 2 weeks ago

CBSE > Class 10 > Mathematics

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If p, q, r and s are real numbers such that pr = 2(q + s), then show that at least one of the equations x2 + px + q = 0 and x2 + rx + s = 0 has real roots.

Posted by Cheshta Garg 9 months, 2 weeks ago

CBSE > Class 10 > Mathematics

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If 2 is a root of the quadratic equation 3x2 + px - 8 = 0 and the quadratic equation 4x2 - 2px + k = 0 has equal roots, find k.

Posted by Cheshta Garg 9 months, 2 weeks ago

CBSE > Class 10 > Mathematics

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In a class test, the sum of Shefali's marks in Mathematics and English is 30. Had she got 2 marks more in Mathematics and 3 marks less in English, the product of their marks would have been 210. Find her marks in the two subjects

Posted by Cheshta Garg 9 months, 2 weeks ago

CBSE > Class 10 > Mathematics

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Check whether the given equation is quadratic equation: (x-3) (2x + 1) = x(x + 5)

Posted by Cheshta Garg 9 months, 2 weeks ago

CBSE > Class 10 > Mathematics

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Is it possible to design a rectangular park of perimeter 80 m and area 400 m square?if so find length and breadth?

Posted by Guru Prasad 9 months, 2 weeks ago

CBSE > Class 10 > Mathematics

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Prove that 1/√6-√5 are irrational

Posted by Siya B 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics

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I have test on chapter 4

Posted by Ruthvik Chowdary Kamma 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics

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the value of ⁠(k) so that (2k+1), ⁠(5k-3) and ⁠(-8k+5) are three consecutive terms of an ap.

Posted by Surya Tk 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics

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Topper Student 9 months, 3 weeks ago

(-8k+5)-(5k-3)=(5k-3)-(2k+1) Solve this and you will get k

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(SinA+cosecA)² +(cosA+secA)²=7+tan²A+cot²A

Posted by Kartik Chauhan 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics

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Tanya Chauhan 9 months, 2 weeks ago

Very simple. LHS (Sin^2 A + cosec^2 A + 2 sin A cosec A)+( cos^2A+sec^2A +2cosA secA) (Sin^2A+cosec^2A+2)+ ( cos^2A+sec^2A+2) (Sin^2A +cos ^2A) +4+(cosec^2A+sec^2A) 1+4+(1+cot ^2A) +( 1+tan^A) (7+tan ^2A+cot^2A) = RHS

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The length, breadth and height of a room are 8.25 m, 6.75 m and 4.50 m, respectively. Find the length of the longest rod in centimetres which can measure the three dimensions of the room respectively.

Posted by Tanishtha Varman 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics

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Find the quadratic polynomial whose zeroes are 3&-3.

Posted by Shubhankar Nayak 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics

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Khushi Chaudhary 9 months, 2 weeks ago

Let the zeroes are alpha is 3 Bita is -3 Alpha+bita= 3+(-3) = 0 Alpha× Bita= (3) (-3) = -9 =K(x^2-(sum of zeroes)x +(product of zeroes) k is constant = (X^2-(0)x +(-9) Ans = x^2-0x-9

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For what value of 'k' will the following system of linear equations has no solution? 3x + y = 1 (2k – 1)x + (k – 1)y = 2k + 1.

Posted by Cheshta Garg 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics

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Shubham Sinha 9 months, 3 weeks ago

The given pair of equations are : - 3x + y = 1 ........... (1) (2k−1)x + (k−1)y = 2k + 1 .......... (2) Now rearranging eq1 and eq2 will get 3x + y − 1 = 0 ........... (3) (2k−1)x + (k−1)y − (2k+1) = 0 ........ (4) Now compare with a1 = 3, b1 = 1, c1 = −1 a2 = 2k−1, b2 = k−1, c2 = −(2k+1) Now we get a1a2 = 32k−1 , b1b2 = 1k−1 , c1c2 = −1−(2k+1) Now will take a1a2 = b1b2 ⇒32k−1 = 1k−1 ⇒3k−3 = 2k−1 ⇒3k−2k = −1+3 ⇒k = 2 Hence k = 2 is the value.

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X-7y=-42 X-3y=6 Solve these graphically

Posted by Siri Priya 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics

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In 🔺️XYZ, MN||YZ, if XM/MY = 2/3 if and XZ = 18cm then XN =

Posted by Ann ... 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics

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Prove that√5 is irrational.

Posted by Aditya Jha 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics

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Sukhman Singh Bhullar 9 months, 3 weeks ago

Let √5=a/b is a rational number Where a and b are co-prime Squaring both sides (5)²=a²/b² 5=a²/b² b²=a²/5 -(1) .'. a² is divisible by 5, also a is divisible by 5 Let a/5=c a=5c Put this value of a in (1) b²=(5c)²/5 b²=25c²/5 b²=5c² c²=b²/5 b² is divisible by 5 also b is divisible by 5 .'. This is a contradication that √5 is a rational number .'.√5 is an irrational number

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In an ap if Sn= n ( 4 n + 1) then find the AP

Posted by Anushka . 9 months, 3 weeks ago

CBSE > Class 10 > Mathematics