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a & b are the o's of polynomial x²-6x+k where 3a+4b=10 find the value of k?

Posted by Raj Raj 6 years, 10 months ago

3 answers

Raj Raj 6 years, 10 months ago

3a+4b=10 equation. 1 a+b=-b/a a+b=6 equation 2 Multiply 2nd eq by3 3a+3b=18 By eliminate equ1&2 remain b=-8 By putting the value of b in equ1 we get a=14 ab=c/a 14×-8=k K=-112

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Puja Sahoo? 6 years, 10 months ago

K=-112

2Thank You

M A Santos 6 years, 10 months ago

K=5

0Thank You

ANSWER

How many of u find triangles chapter easy?

Posted by Gungun_ Lalwani.....? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

@Jay Bunkar 6 years, 10 months ago

Therom pr questions kro mene bhi bhot practice ki thi

0Thank You

Puja Sahoo? 6 years, 10 months ago

Practice them more

0Thank You

Sahil Singh 6 years, 10 months ago

Theorem is important

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ANSWER

*Q.* A sector of a circle of radius 12 cm has the angle 120°. It is rolled up so that two bounding radii are joined together to form a cone. Find the volume of the cone.

Posted by Karan Kumar Mahato 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Raj Raj 6 years, 10 months ago

Volume of cone=πr²×120÷360 =3.14×12×12×120÷360 =3.14×48 =150.72cm²

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ANSWER

A circle with centre O is given and OA is radius BO is perpendicular on A . angle A is 90° and BO is hypertenuse. Prove that perimetre of ∆AOB=r(tan@+sec@-1+180@π/2)

Posted by Jatt Putt Aryan???? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Jatt Putt Aryan???? 6 years, 10 months ago

Sorry BA perpendicular

0Thank You

Anushka Jugran❣️ 6 years, 10 months ago

I have done the similar question in which v have to prove area equal to r(tan@+sec@-1+@22/180×7)

0Thank You

Puja Sahoo? 6 years, 10 months ago

Hmm, ek bat bolo, bs agar, BO perpendicular, hai OA ko to ye hypotenuse kaise hoga

2Thank You

Jatt Putt Aryan???? 6 years, 10 months ago

Answer my question

0Thank You

ANSWER

In ncert page no 202 why pd=8/rut3-1

Posted by Shivam Tripathi 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Prove root 2 is rational no

Posted by Gaurav Motwani 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Show that cot theta . Cos theta +sin theta = cosec theta

Posted by Dj Lakshman 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Ankush Upadhyay 6 years, 10 months ago

(cos/sin).cos+ sin cos^2/ sin+ sin (cos^2+ sin^2)/ sin 1/sin cosec

0Thank You

Jatt Putt Aryan???? 6 years, 10 months ago

Sin@+Cos@×cos@/[email protected]@+cos²@/sin@.....(sin²@+cos²@)/[email protected]/[email protected]@

1Thank You

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From the top of a hill the angle of depression of two consecutive kilometer,stone due east are found to be 30° and 60° , find height of the hill ?

Posted by Ridhima Sen 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Jatt Putt Aryan???? 6 years, 10 months ago

In triangle ABC, tan 45 = height/base = AB/BC or, 1 = AB/BC [ As tan 45 degree = 1] or, AB = BC ..........(i) Again, triangle ABD, tan 30 = AB/BD or, [tan 30 =1/1.732] or[ As AB = BC from (i) above] or, 1.732 AB = AB +1 or, 1.732 AB - AB = 1 or, AB(1.732-1) = 1 or, AB * 0.732 = 1 or AB = 1/0.732 = 1.366 Hence height of the hill 1.366 km

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72+42+4+54+56+55+66+77+88+99+00+123+456+7890

Posted by Fardeen Ahmad 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

What is alternate segment

Posted by Priyanshu Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Jatt Putt Aryan???? 6 years, 10 months ago

The alternate segment theorem states that in any circle , the angle between a chord and a tangent through one of the end points of the chord is equal to the angle in the alternate segment

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A container open at the top is in the form of a frustum of a cone of height 24cm with radii of its lower and upper circular end at 8cm and 20cm find. The container at the rate of rs 27 per litre

Posted by Akshata Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Jatt Putt Aryan???? 6 years, 10 months ago

Complete your question

0Thank You

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What is the highest . Value in mathematics

Posted by Ujjwal Sharma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

S N Mahato 6 years, 10 months ago

This will not ask in xm

0Thank You

Jatt Putt Aryan???? 6 years, 10 months ago

Infinity

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Draw a parallelogram ABCD in which BC=5cm ,AB=3cm and angle ABC=60°. Divide into 2 triangle BCD and ABD by the diagonal BD. Construct a triangle BD'C' similar to BDC with the scale factor 4/3. Draw a line segment D'A' || DA where A' lies on extended side BA. Is A'BC'D' a parallelogram.

Posted by Ankita Modak 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Sec4 theta-sec2theta=tan4theta+tan2theta

Posted by Anjali Mishra 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Jatt Putt Aryan???? 6 years, 10 months ago

Sec2@sec2@[email protected]@(sec2@-1)..... (1+tan2@)(tan2@).....1(tan2@)+tan2@(tan2@)......tan2@+tan4@(H.P)

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Application of algebra

Posted by Shweta Tiwari 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Abi Shinchan 6 years, 10 months ago

What do u actually want

1Thank You

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Find the perimeter of a triangle with vertices (0,4) (0,0) (3,0)

Posted by Akshata Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

5 answers

Anjeela Khan?? 6 years, 10 months ago

0Thank You

Akshata Singh 6 years, 10 months ago

1Thank You

Aman Singh 6 years, 10 months ago

12 by using distance formula

1Thank You

Akshata Singh 6 years, 10 months ago

Method kya h ans lane ka

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Jatt Putt Aryan???? 6 years, 10 months ago

1Thank You

ANSWER

Solve for x x+3/x-2-(1-x)/x=17/x

Posted by Amaan Siddiqui 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find those integral values of m for which x co-ordinate of the point of intersection of lines represented by y=mx+1 and 3x+4y=9 is an integer

Posted by Kajal Shah 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

What is bar graph in statics

Posted by Himanshu Gupta 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If hcf (a,b)=12 and a.b=1800 then find lcm (a,b)

Posted by Akshata Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Aastha Gupta ? 6 years, 10 months ago

We know that, Hcf x lcm =product of given 2 numbers =12x lcm=1800 Lcm=1800/12 Lcm=150. Answer.

0Thank You

Khushnuda?Khushi ??? 6 years, 10 months ago

Lcm*hcf=product of 2no.s Lcm*12=1800 Lcm=1800/12 Lcm=150

1Thank You

Jatt Putt Aryan???? 6 years, 10 months ago

H.C.F×L.C.M= product of numbers...12×L.C.M=1800...L.C.M=1800/12.....L.C.M=150

1Thank You

ANSWER

If sec thita+tan thita is equal to P, then find the value of cosec thita

Posted by Jahanvi Khandelwal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Anjeela Khan?? 6 years, 10 months ago

I/cos thethe+ sin thethe / cos thethe 1+ sin thetha/ cos thethe=p Cosecthetha= 1/ sin thetha Secthethe + tanthethe= p..................1 Sec^2+tan^2=1 (Secthetha-tanthethe) ( secthetha+ tanthetha) ( secthetha- tanthethe)=1.................2 By adding equation 1 and 2 2secthetha= p+1/p Sectheta=p^2+1/2p (P^+1)-(2p)^2 Under root (p^2)^2+1^2×2p^2-4p^2 Under root p^4+1-2p^2 Root cancel by square P^2-1 Cosecthetha is hypho/ parpendicular So Cosecp= p^2+1/p^2-1

1Thank You

Anushka Jugran❣️ 6 years, 10 months ago

Ha, bahut common question hai

0Thank You

Jatt Putt Aryan???? 6 years, 10 months ago

(P^2+1)/(p^2-1)

1Thank You

ANSWER

Find n and Sn of a = 5 , d=3 An=50.

Posted by Thakur Naresh Rana 6 years, 10 months ago

CBSE > Class 10 > Mathematics

7 answers

Disha Patidar 6 years, 10 months ago

First apply the formula an=a+(n-1)d an=50, a=5 ,d=3. 50=5+(n-1)3 50-5=(n-1)3 45=(n-1)3 45÷3=(n-1) 15=(n-1) 15+1=n 16=n Now, apply Sn=n/2 (2a+(n-1)d Sn=16/2 (2×5+(16-1)3 Sn=8 (10+45) Sn=8×55 Sn=440 Therefore, n=16 and Sn=440 ☺☺

0Thank You

Anjeela Khan?? 6 years, 10 months ago

N=60 Sn= 440

0Thank You

Amaan Siddiqui 6 years, 10 months ago

an=a+(n_1)d

0Thank You

Anushka Jugran❣️ 6 years, 10 months ago

Firstly apply the formula an =a+(n-1) d and then apply the formula to find sum that is sum equal to n/2(2a+(n-1)d)

1Thank You

Jatt Putt Aryan???? 6 years, 10 months ago

Sorry sorry n= 16 and sn=440

0Thank You

Jatt Putt Aryan???? 6 years, 10 months ago

N=12 and sn = 258

0Thank You

Puja Sahoo? 6 years, 10 months ago

n=16, and Sn= 440

2Thank You

ANSWER

Constract an triangle ABC where AB=5cm ,angleB=60 and the altitude CD=3cm then constract another triangle whose sides are4/5 of triangal ABC (steps?)

Posted by Amaan Siddiqui 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Anushka Jugran❣️ 6 years, 10 months ago

Can't construct here...

2Thank You

ANSWER

Find four terms in an A. P. Whose sum is 120 and the sum of whose square is 120.

Posted by Thakur Naresh Rana 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Anushka Jugran❣️ 6 years, 10 months ago

Ya, aryan is ryt

0Thank You

Anushka Jugran❣️ 6 years, 10 months ago

I hope that u know the method.. Take the terms as a-3d, a-d, a+d, and a+3d... And no need of saying thnx ?

1Thank You

Jatt Putt Aryan???? 6 years, 10 months ago

Bhai apka question galat h maine ye question padha h isme 120 nahi pehle value sirf 20 h

0Thank You

Anushka Jugran❣️ 6 years, 10 months ago

2,4,6,8 or 8,6,4,2

2Thank You

ANSWER

From the top of a 60m high building the angle of depression of the top and the bottom of a tower are 45 and 60 respectively. Find the height of the tower

Posted by Neelam Sahu 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Rahul Gola 6 years, 10 months ago

answer is 60-20root3

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ANSWER

All solution

Posted by Tonu Senapati 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Gungun_ U Can Wish Me On 3 Feb.....? 6 years, 10 months ago

Konsa solution....pura ques type karo

1Thank You

Anshika / U Can Call Me Alien ???? 5 years, 8 months ago

Which chapter

1Thank You

ANSWER

Prove that (secA+tanA-1)(secA-tanA+1)=2/cotA

Posted by Gungun_ U Can Wish Me On 3 Feb.....? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Gungun_ U Can Wish Me On 3 Feb.....? 6 years, 10 months ago

Atleast answer to mila mujhe

0Thank You

Puja Sahoo? 6 years, 10 months ago

Yup, se...here ..---> (secA+tanA-1)(secA-tanA+1) -----> (secA +tanA-1){secA-(tanA-1)}..................... ----->sec square A - ( tanA - 1)square ................... ------> sec square A-(tan square A+1-2tanA) ........ ----> sec square A-tan square A - 1+ 2 tanA......... ----> 1-1+2tanA........ ----> 2tanA..... ------> 2/ cotA.. HENCE PROVED......☺☺

1Thank You

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Anyone who knows how to send photos ---can hlp to make esy learning

Posted by S N Mahato 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Anyone have doubt from Ap or volume and surface area or probability or areas related to circle----can ask.

Posted by S N Mahato 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

S N Mahato 6 years, 10 months ago

Spilt LHS in terms of sin cos...if u found difficulty ask

1Thank You

Gungun_ U Can Wish Me On 3 Feb.....? 6 years, 10 months ago

(SecA+TanA-1)(secA-tanA+1)=2/cotA

1Thank You

Simran Kaur 6 years, 10 months ago

Volume and surface area

1Thank You

Gungun_ U Can Wish Me On 3 Feb.....? 6 years, 10 months ago

Nooo not in these chapters but I have doubt in trigonometry

2Thank You

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If sin theta + 2cos theta =1 Prove that 2sin theta - cos theta=2

Posted by Tanya Zanzad 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Jatt Putt Aryan???? 6 years, 10 months ago

Sq. Both side......sin2@+4cos2@+4cos@sin@=1.......... 1-cos2@+4(1-sin2@)+4cos@sin@=1......1-cos2@+4-4sin2@+4cos@sin@=1.......-cos2@-4sin2@+4cos@sina=4....(2sin@-cos@)^2=4......2sin@-cos@=2(H.P)

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