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Dear Puja Sahoo, area of A(6,3), B(-3,5) and C(4,-2) will be 1/2 * {6(5+2) -3(-2-3)+4(3-5)} = 1/2 * (42 + 15 - 8) = 1/2 * 49 sq units Now area of triangle PBC with (x,y) (-3,5) (4,-2) will be 1/2 * {x(5+2) -3(-2-y)+4(y-5)} = 1/2 * (7x + 7y - 14) = 7/2 * (x+y-2) sq units Hence area ? PBC / area ? ABC = 7/2 * (x + y - 2) / 49/2 So required ratio = (x + y - 2) / 7 ]proved]

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Puja Sahoo? 6 years, 11 months ago

Naaa........repeat the question again......

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Shashikant ? 6 years, 11 months ago

Nahi...kal ke question ka answer hai. 100m distance..okkk

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Puja Sahoo? 6 years, 11 months ago

Agar, solve ho jaye ,to plz ap bata dena........

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Puja Sahoo? 6 years, 11 months ago

Apke, kl ke question ka answer hai, ................-200 root 3/3. Correct hai na.....

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Puja Sahoo? 6 years, 11 months ago

The coordinates of A, B, C are (6,3),(-3,5)&(4,-2)respectively and P is any point (x, y). show that the ratio of the areas of triangle PBC and ABC is [x+y-2/7]..............solve this.....

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card bearing number of 3 to 20 are placed in a bag and mixed thoroughly. a card is taken out from the bag at random . what is the probability that the number on the card taken out is a composite number

Posted by Ashhad Khan 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If A(-5,7),B(-4,-5),C(-1,-6), D (4,5) Adi vertices of the quadrilateral find the area of quadrilateral

Posted by Zeenat Khatun 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Sarthak Paliwal 6 years, 11 months ago

When you plot this point quadrilateral and join any two point as a diagonal.you will get two traingles then by joining the area of two triangle you will get area of quadrilateral. I am not giving u solution because you should try to solve it

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Find acute angle thita if √3 sin thita = cod thita

Posted by Yash Sonawane 6 years, 11 months ago

CBSE > Class 10 > Mathematics

3 answers

Chetna Pandey ? 5 years, 8 months ago

30°

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Yaser Siddiquee 6 years, 11 months ago

√3 sinΦ = cosΦ => √3 = cosΦ/sinΦ => cot30 = cotΦ (cot30 = √3) Therefore, Φ = 30 degree

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Surendrapal Singh Singh Gaur 6 years, 11 months ago

Theeta =30°

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I have my matjs pre board tommorow give me tip to solve the questions of trignometry

Posted by Sarthak Paliwal 6 years, 11 months ago

CBSE > Class 10 > Mathematics

4 answers

Kshitij Vats 6 years, 11 months ago

Pls dont study at the last time as it will make you confeuse and ?all the best?

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Chetna Pandey ? 6 years, 11 months ago

Just do practice......

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Divanshu Rawat 6 years, 11 months ago

In proving identities questions first read the question carefully and cjoose what step you should taken . Change all th value in sin ans cos in mostly qusetions

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Surendrapal Singh Singh Gaur 6 years, 11 months ago

As the whole concept is primarily based on NCERT so u must practise ncert questions quite well and thus learn the application of identities. BEST OF LUCK btw ?.

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CSA of cylinder is 264m2 and volume is 924m3 . Find the ratio of their height upon diameter.

Posted by Mansi ??⚘?? 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Surendrapal Singh Singh Gaur 6 years, 11 months ago

Ratio of height to diameter = 3/7

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ANSWER

X+√y=21 and √x+y=29

Posted by Om Mishra 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Sample question paper summative assessment-ll class-x 2016-17 mathmatic

Posted by Shivnandini Mahapatra 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

One-fourth of a herd of camel ? was seen in the forest. Twice the square root of the herd gone to mountain and the remaining 15 ? camel were seen on the bank of a river. Find the total no. of camel......

Posted by Ankit Raj 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Two tangents PA and PB are drawn to a circle with center O from an external point P, prove that APB=2OAB

Posted by Saloni Gupta 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

9f. (X-2) (x+3) hcf of polynomial P(x) (2x-3x+2) (4+7x+a) Q(x) (2x+4x+) (6-7x+b) Find a &b

Posted by Sarthak Verma 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

How do we come to know that which median class should be taken aftwr getting n/2

Posted by Trilochan Sahu 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Akshita Khandelwal 6 years, 11 months ago

i also have a doubt in dis pls guys help me....

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Prove that length of tangent drawn from an external point to a circle are equal

Posted by Abhay Mishra 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Sarthak Paliwal 6 years, 11 months ago

You can prove it by congruency rule i.e. Given in ncert page no. 211

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If Sn denots the sum of first n terms of an AP , prove that ,S12=3(S8-S4).

Posted by Chirag Sankhyan 6 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

Let a be the first term and d be the common difference of the given AP. Then,
S_n= {tex}\frac{n}{2}{/tex}{tex} \cdot {/tex}[2a+(n-l)d],
{tex}\therefore{/tex} {tex}3(S_8-S_4) = 3{/tex}[{tex}\frac{8}{2}{/tex}{tex}(2a+7d)-{/tex}{tex}\frac{4}{2}{/tex}{tex}(2a+3d)]{/tex}
= {tex}3[4(2a+7d)- 2(2a+3d)] = 6(2a+11d){/tex}
{tex}= \frac { 12 } { 2 } \cdot ( 2 a + 11 d ) = S _ { 12 }{/tex}.
Hence, S₁₂= 3(S₈-S₄).

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ANSWER

Find the firs four term of an A.P whose first term is 3x-y & comman difference is x-y

Posted by Mansi ??⚘?? 6 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

{tex}a_1 = 3x + y {/tex}and {tex}d = x - y{/tex}
{tex}a_2 = a_1 + d = 3x + y + x - y = 4x{/tex}
{tex}a_3 = a_2 + d = 4x + x - y = 5x -y{/tex}
{tex}a_4 = a_3 + d = 5x - y + x - y = 6x -2y{/tex}
So, the four terms are {tex} 3x + y, 4x, 5x - y {/tex} and{tex} 6x - 2y{/tex}.

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In triangle PQR PR=/x+3 , QR=/7 and angle Q =90 evaluate Tan p.Sin R.Cosec P - Cos Q+ 7cot^ P. Cosec Q

Posted by Devyansh Joshi 45 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Raj Dhali 6 years, 11 months ago

PQ^2 = x-4 PQ=√x-4 evaluation=√7/√x-4 × √x-4/√x+3 × √x+3/√7 - 0(since cos90 is 0) =1-0=1

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Find the firs term of an A.P whose first term is 3x+y & comman difference is x-y.

Posted by Mansi ??⚘?? 6 years, 11 months ago

CBSE > Class 10 > Mathematics

5 answers

Mansi ??⚘?? 6 years, 11 months ago

The first four terms of an A.P is 3x + y , 4x, 5x - y & 6x - 2y

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Sankalp Awasthi 6 years, 11 months ago

By the way what's the ans i wanna know....may be mine is correct

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Sankalp Awasthi 6 years, 11 months ago

Perhaps.....3x+y...4x.....5x-y.....-2y.....

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Mansi ??⚘?? 6 years, 11 months ago

Sorry it is first four terms

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Sankalp Awasthi 6 years, 11 months ago

What u want to ask first term or nth term

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a and b are two positive integers such that the least prime factor of a is 3 and the least prime of b is 5.Then calculate the least prime factor of a+b

Posted by Amit Yadav 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Raj Dhali 6 years, 11 months ago

a and b have least prime factor an odd no. Hence both are odd no.so,a+b=odd+odd which is even.all even have least prime factor 2.hence least prime factor of a+b is 2

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Given that tan thita =1/root 5

Posted by Dipshika Malakar 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If m*cotA=n, then find {(m*sinA)-(n*cosA)}/{(n*cosA)+(m*sinA)}

Posted by Madhu Wadekar 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the 12 th term from the end of the A.P, -2,-4,-6,.............,-100

Posted by Joginder Singh 5 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Amaan Sheikh 6 years, 11 months ago

-100,-98.........-2 Now find common difference a2-a1 =-98-(-100) -98+100 d=2 Now find the 12th term a+(n-1)d -100+(12-1)2 -100+22 -78 answer

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A container open at top is in the form of a frustum of a cone of height 21cm with radii of its lower and upper circular ends as 8cm and 20cm respectively. Find the cost of milk which can completely fill the container at the rate Rs 40 per litre.

Posted by Abhishek Gupta 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Madhu Wadekar 6 years, 11 months ago

5,49,120 rs

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ANSWER

All chapter formulas

Posted by Naveen Pal 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Prove that 1 1 1 1 ------------------- __ ----------------- = ----------- __ ----- SecA+tanA cosA cosA secA _tan

Posted by Rahul Kumar 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Why am i don't see maths sample paper 5

Posted by Vandana Verma 6 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Abc . 6 years, 11 months ago

Are you asking about that sample papers which are provided by this app then you must have to buy sample papers as you have bought earlier sample paper 2-4.

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Jot Virk?♠ 6 years, 11 months ago

What is ur querry

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