CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

Ncert textbook and ncert exampler only.....ncert cover 90 percent....ncert exampler cover 10 percent......hope it help you bro....are you want to become a member of ⛩️Singh Empire......

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Plse tell me some important question of ch6 triangles

Posted by Inayat Khan 6 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Aayush Kumar 6 years, 3 months ago

All theorems are important.

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Inayat Khan 6 years, 3 months ago

Only one que.

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Isha Antil 6 years, 3 months ago

Pgt theorms

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Find a rational no. b/w √2 and√3

Posted by Vivek Kumar 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Varshini Palakurty 6 years, 3 months ago

1.5

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Every linear equations in two variables has..........solutions.

Posted by Jimmy Patel 6 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Inayat Khan 6 years, 3 months ago

I will go with varshini.. It will have many solutions

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Varshini Palakurty 6 years, 3 months ago

Infinitly many solutions

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Ritik Madhwani 6 years, 3 months ago

1 solution

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find the angle of depression from the top of the 15 metre high tower power of an object lying at the point 15m away from the base of the tower.

Posted by Advik Dixit 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Varshini Palakurty 6 years, 3 months ago

Height=15 Base=15 Angle of depression =? Consider triangle abc b is interior opposite angle of depression Opposite =15m Adjacent =15 Tan=opp/adj Tan=15/15 Tan=1 Tan45=1 Angle of depression =45

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The sum of first m terms of ap is (4m2-m.)If its nth term is 107.find the value of n. Also find the 21st term of this Ap

Posted by Pratima Raj 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Inayat Khan 6 years, 3 months ago

Putting values of m as 1;2;3... 4m'2-m=4(1)'2-2(1)=2. 4m'2-2m=4(2)'2-2(2)=12. 4m' 2-2m=4(3)'2-2(3)=30. Now;s1=2;s2=12 nd s3=30. Also s1=a1 ;s2-s1=a2. So a1=2 and a2=12-2=10. Therefore d=a2-a1=10-2=8. As ;an=a+(n-1)d. =107=2+(n-1)8. =107=2+8n-8. =112=8n. n=14. Hope you will further solve it and it will help you .

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Split two hundred seven into three parts such that these are in A.P. and the product of the two smaller part is 4623

Posted by Zeba Fatima 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 3 months ago

69, 67, 71

Let ( a - d ) , a , ( a + d ) are three parts are in A.p

according to the problem given ,

a - d + a + a + d = 207

3a = 207

a = 207 / 3

a = 69

product of two smaller parts = 4623

( a - d ) × a = 4623

( 69 - d ) × 69 = 4623

69 - d = 4623/69

69 - d = 1541/23

69 - d = 67

-d = 67 - 69

- d = - 2

d = 2

Therefore ,

required three parts are ,

a - d = 69 - 2 = 67

a = 69

a + d = 69 + 2 = 71

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If sin 3A=cos(A-16) where 3A <90 degree findA

Posted by Yadav Monu 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 3 months ago

Qustion: If sin 3A = cos (A – 26°), where 3A is an acute angle, find the value of A.

Solution:

Sin 3A = cos (A-26 )

cos (90 - 3A) = cos (A-26) [ sinA = cos (90- A )
By comparison

90-3A = A-26

90+26=A+3A
116=4A

A= 29

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Sample paperterm2

Posted by Abhishek Yadav 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Inayat Khan 6 years, 3 months ago

Can't understand wht u exactly wanted to know

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Two equilateral triangles are similar by which of the following A. AAA B. SSS C.SAS D. All

Posted by Himanshu Kumar 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Deepti Singh 6 years, 3 months ago

All

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Himanshu Kumar 6 years, 3 months ago

My answer is D.All

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Median is the most suitable measure in central tendency for which A.IQ scores of Students in class B.Per capita income of several countries C.Ages of students in two classes D.Sizes of agricultural holdings

Posted by Himanshu Kumar 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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Root 2 is irrational number prove it

Posted by Isha Antil 6 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Isha Antil 6 years, 3 months ago

Give an answer in short way

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Deepti Singh 6 years, 3 months ago

Ncert book theorem 1.4

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⛩️Singh Empire? (Believe In Study) 6 years, 3 months ago

Prefer rs aggarwal .....

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Solve the following pair of linear equations 3x+4y=10, 2x-2y=2

Posted by Badhinehal Rishika 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Inayat Khan 6 years, 3 months ago

Solve it by elimination.if u can't solve it i will help u

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⛩️Singh Empire? (Believe In Study) 6 years, 3 months ago

X=2 ;y=1

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1/cosA+sinA-1 + 1/cosA+sinA+1 = cosecA+secA

Posted by Piyush Gadbail 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Asmilo Hall 6 years, 3 months ago

Given 1/(cosA+sinA-1)+1/(cosA+sinA+1)=cosecA+secA Read more on Sarthaks.com - https://www.sarthaks.com/31243/prove-that-1-cosa-sina-1-1-cosa-sina-1-coseca-seca

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Find n if N -1 P3 ratio and P4 equals to 1 ratio 9

Posted by Vinay Pratap 6 years, 3 months ago

CBSE > Class 10 > Mathematics