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Let the three no are x-1,x-7 ,x-7 are in ap find the value of x

Posted by Babula Babula Bisoye 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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Khushi ? 6 years, 10 months ago

Correct ur ques plz

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Draw a right triangle in which the sides (other than the hypotenuse) are of length 4 cm and 3 cm . Now construct triangle whose sides are 3/5 times the corresponding sides of the given triangle

Posted by Milin Tyagi 6 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

Steps of construction:-

Steps of construction:-

Draw AB = 4 cm
Draw RA perpendicular to AB, and mark C on it such that AC = 3 cm.
Join BC, ABC is the original triangle
Draw any ray AX making acute angle {tex}\angle BAX{/tex} with AB.
Mark five points using a compass , A₁, A₂ ,….., A₅ on AX such that AA₁= A_¹A₂ = A₂A₃ = A₃A₄= A₄A₅
Join BA₅, and draw a line parallel to it passing from A₃, intersecting AB at B'.
Draw line parallels to CB through B' to intersect AC at C'.
{tex}\triangle{/tex}AB'C' is the required triangle.

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For what value of k so that kx+3y=k-3 & 12k+ky=k infinite solution

Posted by Sumit Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Ashwani Maurya 6 years, 10 months ago

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Two coins are tossed simultaneously. Find the probability of exactly one head

Posted by Yuvraj Kumar 6 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

When two coins are tossed simultaneously
Total number of outcomes = {HH, HT, TH, TT}
Total number of outcomes = 4
Favourable outcomes = {HT, TH} = 2
Probability of getting exactly one head ={tex}\frac { 2 } { 4 } = \frac { 1 } { 2 }{/tex}

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Bpt theorem?

Posted by Sahil Vazadaka 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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Chapter 10 theorem 10.2

Posted by Md Suleman 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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Ab is a diameter of a circle p is a point on the semi circle APB , AH and BK are perpendicular. Prove A and B are respectively tangent at P .prove AH+BK=AB

Posted by Mandeep Kaushik 6 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

Clearly,{tex}\angle M P O = 90 ^ { \circ }{/tex}
Since {tex}B K \perp H M , A H \perp H M \text { and } O P \perp H M{/tex}. Therefore, AH||OP||BK .
Let AH = x, BK = y and OP = r. Further, let MB = z.
In {tex}\Delta M K B{/tex} and {tex}\Delta M H A{/tex},we have
{tex}\angle M K B = \angle M H A{/tex}= 90°
and {tex}\angle B M K = \angle A M H{/tex} [Common]
So, by AA criterion of similarity, we have
{tex}\Delta M K B \sim \Delta M H A{/tex}
{tex}\Rightarrow \quad \frac { B K } { A H } = \frac { M B } { M A }{/tex}
{tex}\Rightarrow \frac { y } { x } = \frac { z } { 2 r + z }{/tex}
{tex}\Rightarrow 2 r y + y z = z x{/tex}
{tex}\Rightarrow z = \frac { 2 r y } { x - y }{/tex}...(i)
In {tex}\Delta M K B{/tex} and {tex}\Delta M P O{/tex}, We have
{tex}\angle M K B = \angle M P O = 90 ^ { \circ }{/tex}
{tex}\angle B M K = \angle O M P{/tex} [Common]
So, by AA criterion of similarly, we obtain
{tex}\Delta M K B \sim \Delta M P O{/tex}
{tex}\Rightarrow \quad \frac { B K } { O P } = \frac { B M } { O M }{/tex}
{tex}\Rightarrow \frac { y } { r } = \frac { z } { r + z }{/tex}
{tex}\Rightarrow r y + y z = r z{/tex}
{tex}\Rightarrow \quad z = \frac { ry } { r - y }{/tex}...(ii)
From (i) and (ii), we get
{tex}\frac { r y } { r - y } = \frac { 2 r y } { x - y }{/tex}
{tex}\Rightarrow 2 r - 2 y = x - y{/tex}
{tex}\Rightarrow 2 r = x + y{/tex}
Thus, AB = AH +BK.

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Slove for x and mx+y=m+n m(1\m_n-1/m-n)x+n(1/n_m_content://media/external/file/1080221m+n

Posted by Deepak Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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A12 the term of ap is -3, -1/2, 2

Posted by Sambhav Is Here 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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Find the value of k so that 2x find the value of k so that 2 X square + kx + 3 is equal to zero

Posted by Devanand Ray Ray 6 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

2x² + kx +3=0
We know that quadratic equation has two equal roots only when the value of discriminant is equal to zero.
Comparing equation 2x² +kx +3=0 with general quadratic equation ax² + bx + c =0, we get a = 2, b = k and c = 3
Discriminant = b²− 4ac = k² - 4(2)(3) = k²-24
Putting discriminant equal to zero
k² - 24 = 0 ⇒ k² = 24
{tex}\Rightarrow k = \pm \sqrt { 24 } = \pm 2 \sqrt { 6 } \Rightarrow k = 2 \sqrt { 6 } , - 2 \sqrt { 6 }{/tex}

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Which of the following equation as sum of its two roots as 3 first x square + 3 x minus 5 equals to zero second X square + 3 X + 3 = 20 third root 2 x square minus 3 upon root 2 x minus 1 equals to 0 4 3 x square - 3 x - 3 = 20

Posted by Swayam Dahiya 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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Formula of Area of minor segment

Posted by Ayush Handa 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Vedika Sopra 6 years, 10 months ago

Area of sector - area of tirangle

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Samyukta ... 6 years, 10 months ago

Theta/360×πr^2- r^2 × sin theta/2

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1. 1. 1. 1 A+b+x=. A+ b+. X

Posted by Akansha Sharma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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√2 is irrational no.

Posted by Suraj Jaiswal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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√2 is irrational

Posted by Suraj Jaiswal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Mayank ... 6 years, 10 months ago

Bhai rs aggarwal me diya hua hai.....

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Find the distance between A(a,b)&(-a,-b)

Posted by Devanand Ray Ray 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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(a+b) whole squa re is identify me agar a= 2a diya hai too a whole square me kya lenge

Posted by Khan Fardin 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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Two different dice are thrown together find that proballity that number obtain is doublet of odd numbet

Posted by Ratinath Jha 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Mehak Arya 6 years, 10 months ago

1/4 is the probabilitu

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If ABC ~ QRP, ar(ABC) ar(QRP) = 9 4 , and BC = 15 cm, then find PR.

Posted by Ankit Raj 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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A wire is in the form of a circle of radius 42 cm it is bent into a square determined the side of the square

Posted by Suryansh Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Mayank ... 6 years, 10 months ago

Haaaain ye kya hai...?? Mehak Square or circle ka volume kb se hone lga...???

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Mehak Arya 6 years, 10 months ago

Volume of circle = volume of square

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If sec theta + tan theta=p then,find the value of cosec theta

Posted by Tajender Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Archi Mehta 6 years, 10 months ago

Secθ+tanθ=p ----------------------(1) ∵, sec²θ-tan²θ=1 or, (secθ+tanθ)(secθ-tanθ)=1 or, secθ-tanθ=1/p ----------------(2) Adding (1) and (2) we get, 2secθ=p+1/p or, secθ=(p²+1)/2p ∴, cosθ=1/secθ=2p/(p²+1) ∴, sinθ=√(1-cos²θ) =√[1-{2p/(p²+1)}²] =√[1-4p²/(p²+1)²] =√[{(p²+1)²-4p²}/(p²+1)²] =√[(p⁴+2p²+1-4p²)/(p²+1)²] =√(p⁴-2p²+1)/(p²+1) =√(p²-1)²/(p²+1) =(p²-1)/(p²+1) ∴, cosecθ=1/sinθ=1/[(p²-1)/(p²+1)]=(p²+1)/(p²-1) I HOPE THIS HELPS!

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The height of a cone is 120cm.A small cone is cut off at the top

Posted by Ayush Garg 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Mayank ... 6 years, 10 months ago

Complete the question please....

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1+tan

Posted by Khan Asad 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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1/a+b+x =1/a +1/b + 1/c

Posted by Archi Jain 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Mayank ... 6 years, 10 months ago

Question clear nhi ho paa rha hai...

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Find value of k in which k system of equation x minus 2 y is equals to 3 and second equation is 3 X + k y 2 has unique solution

Posted by Dhirendra Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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SARCASM AHEAD! The most important question that will come in exam...prove that 1 2 ka 4 and 4 2 ka 1

Posted by Vikram Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

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An aeroplane is flying at a height at 3000m . An observer finds his angle of elevation to be 60 degree and after 6 seconds it changes to 45 degree , what is the speed of aeroplane

Posted by Raghunath Nayak 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Harsh Choudhary 6 years, 10 months ago

What is the answer

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Mannu Bansal 6 years, 10 months ago

It is ncert question go in guide u will find it

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Just some mathematics jokes to entertain buddies xD My girlfriend is the square root of -100 She is perfect 10....bt purely imaginary xD One more What snake does your math teacher have... A Pi Thon xD

Posted by Vikram Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Honey ??? 6 years, 10 months ago

Dhanyawaad

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Please answer my question.... What is linear combination... Express the HCF of 48 and 18 as linear combination..

Posted by Mayank ... 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Vikram Singh 6 years, 10 months ago

Copied from Brainly... → To find : HCF( 18 , 48 ) → To create : Linear Combination ( 18 , 48 , gcd( 18 , 48 )) Steps : ◘ Using Euclid's Algorithm : → 48 = 18 x 2 + 12 → 18 = 12 x 1 + 6 ► Since '6' divides the last system, '6' is the HCF ► Taking things the Anti-Algorithmic way :- → 6 = 18 - 12 = 18 - ( 48 - ( 18 x 2 ) ) = 18 ( 3 ) - 48 → 6 = 18 ( 3 ) + 48 ( -1 ) ♦ Hence, the appropriate Linear Combination is : •→ 6 = 18 ( 3 ) + 48 ( -1 )

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A right triangle whose side are 3cm and 4cm other than hypotenuse is made to revolve about its hypotenuse. Find the volume of double cone formed

Posted by Anshul Garg 6 years, 10 months ago

CBSE > Class 10 > Mathematics