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

x = a cos theta y= b sin theta therefore substituting values of X and y in the given equation b^2 a^2cos^2 theta +a^2b^2sin theta (taking b^a and a^b as common) b^2 a^2(sin^theta+ cos^2 theta) = b^2 a^2(1) =b^2 a^2

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Wath do you mean by AP

Posted by Badal Baisla 2 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Shantanu Yadav 2 years, 4 months ago

Ap is the sequence of numbers where the common difference is same.

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Phur Lhamu Sherpa 2 years, 4 months ago

Althemetic progression

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Figure PQ is a chord of length 8 cm of a circle of radius 5 cm. The tangents at P and Q intersect at a point T. Find the length TP.

Posted by Learner Yyyy 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Badal Baisla 2 years, 4 months ago

3is the ans

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The decimal of 6/15

Posted by Anish Kumar 2 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Bhartendu Kushawah 2 years, 4 months ago

0.4

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Swadesh Dhakad 2 years, 4 months ago

0.4

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The decimal number of 6/15

Posted by Anish Kumar 2 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Phur Lhamu Sherpa 2 years, 4 months ago

2.5

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Bhavishya Yadav 2 years, 4 months ago

0.4

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Hey, what's the fifth term of AP?

Posted by Akshay Jain 2 years, 4 months ago

CBSE > Class 10 > Mathematics

4 answers

Daizy Mehta 2 years, 4 months ago

a+4d

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Anamika Bhagowati 2 years, 4 months ago

a+4d

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Vivek Pramanik 2 years, 4 months ago

a+4d

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Ayush Gaming 2 years, 4 months ago

a+4d

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Cut syallabus of math class 10 in this year

Posted by Harnandeep Kaur Sidhu 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Isha . 2 years, 4 months ago

DELETED SYLLABUS Chp 1 : Euclids divission lemma Decimal Representation of rational nos in terms of terminationg and non terminating recurring decimals Chp2 : Statement and simple problems on division algorithm for polynomials with real coeffecients Chp3 : Cross multiplication method Simple problems on equations reducible to linear equations Chp4 : Method of completing the squares to solve quadratic equations Chp6 : Areas of two similar triangles theorem Chp7 : Area of triangle Chp 8 : Trignometric ratios of complementary angles Chp 11 : Deleted Chp 13 :Frustum of a cone

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Who is the biggest number of medium in the whole world

Posted by Yatharth Kumar 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Phur Lhamu Sherpa 2 years, 4 months ago

There is no biggest numbers of medium

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Write the 4th term of an Ap

Posted by Murari Singh 2 years, 4 months ago

CBSE > Class 10 > Mathematics

4 answers

Harman Sharma 2 years, 4 months ago

a+3d

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Harman Sharma 2 years, 4 months ago

a+2d

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Palak Gupta 2 years, 4 months ago

3ad

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Vaishnavi 10 2 years, 4 months ago

a+3d

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Any one singed up for arayabatta brahthiya ganitha quiz

Posted by Naren Naren 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Harman Sharma 2 years, 4 months ago

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Distance between two ships is 73.2 m. From the top of tower, 100 m high, a man observes two cars on the opposite sides of the tower with the angles of depression 30c and 45c respectively. Find the distance between the cars. (Use 3 1 = .73)

Posted by Chandana My Cbse Guide 2 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Badal Baisla 2 years, 4 months ago

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Hardik Kumar 2 years, 4 months ago

Hard question

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Sir I have an dobut on bpt thereon

Posted by Khushpreet Kaur Khushi 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Khushpreet Kaur Khushi 2 years, 4 months ago

añ =n²+1

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Hey sir I want to ask you something about traingle ch

Posted by Khushpreet Kaur Khushi 2 years, 4 months ago

CBSE > Class 10 > Mathematics

5 answers

Khushpreet Kaur Khushi 2 years, 4 months ago

Sir thales therom

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Khushpreet Kaur Khushi 2 years, 4 months ago

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Khushpreet Kaur Khushi 2 years, 4 months ago

From starting

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Khushpreet Kaur Khushi 2 years, 4 months ago

Sir I want to ask you about thales theorem

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Shivam Gupta 2 years, 4 months ago

Yes, say what is your doubt?

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Find the radius of the circle whose diameter is 14 cm

Posted by Daksh Vijay 2 years, 4 months ago

CBSE > Class 10 > Mathematics

5 answers

Preeti Dabral 2 years, 4 months ago

Radius=Diameter/2=14/2=7cm

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Yatharth Kumar 2 years, 4 months ago

7 cm

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Vaishnavi 10 2 years, 4 months ago

D = 2r r = D/2 14/2 =7

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Anshu Yadav 2 years, 4 months ago

Radius =diameter / 2 = 14 / 2 = 7cm circumference of circle 2πr= 2×22/7×7=2×22=44cm

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Shivam Gupta 2 years, 4 months ago

r=7 Area of circle=πr^2 =22×7×7/7 = 22×7 = 154

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find the area of 4 balls of a room with dimensions 6 into 5 into 4 am also find the cost of whitewashing the rate of rupees 25 per metre square

Posted by Roshan Manekar 2 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Preeti Dabral 2 years, 4 months ago

Here, l = 6 m, b = 5m and h = 4m
$\therefore$ Area of the walls = 2h(l + b) = { 2 $\times$ 4 $\times$ (6 + 5)}m² = (8 $\times$ 11)m² = 88m²
Cost of white washing of 1 square metre = Rs.25
$\therefore$ Cost of white washing the walls = Rs.(25 $\times$ 88) = Rs.2200

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Sai Milan 2 years, 4 months ago

Hii

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Find the mean literacy rate: Literacy rate 45-55,55-65, 65-75, 75-85,85-95 Number of cities 3,10,11,8,3

Posted by Palavalasa Harsha Vardhan 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Preeti Dabral 2 years, 4 months ago

Marks	No. of students fi	xi	fixi
45-55	3	50	150
55-65	10	60	600
65-75	11	70	770
75-85	8	80	640
85-95	3	90	270
	Σfi=35		Σfixi=2430

We know that, arithmetic mean $=\frac{\Sigma \mathrm{f}_{\mathrm{i}} \mathrm{x}_{\mathrm{i}}}{\Sigma \mathrm{f}_{\mathrm{i}}}$

∴Mean literacy rate $=\frac{2430}{35}=69.43 \%$

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find the value of a and b so that x ke power 5+x ke power 4 "-a-b" is exactly divisible by x square "-1"

Posted by Shreya Rai 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Shreya Rai 2 years, 4 months ago

Please answer me step by step

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In the given figure dE parallel BC and AD/DB=3/5 IF AC=5.6 the AE IS

Posted by Rahul Raj 2 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Preeti Dabral 2 years, 4 months ago

Given in triangle ABC And triangle ADE BC || DE
Also AD/DB = 3/5,AC = 5.6

To find AE
In trinagle ABC And ADE
AD/BD = AE /EC. ----EQ 1........ ( By basic proportionality theorem....)

Doing reciprocal both sides we get
BD/AD = EC/AE

On adding 1 both sides we get,
BD + AD/AD = EC + AE/
= AB/AD = AC/AE
= 8/3 = 5.6/AE
= AE = 3 × 5.6/8
= AE = 2.1 cm Ans..

Hope it will be helpful