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What is constructions ?

Posted by Jayesh Khatumara 4 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 11 months ago

Construction is a general term meaning the art and science to form objects, systems, or organizations, and comes from Latin constructio and Old French construction. To construct is the verb: the act of building, and the noun is construction: how something is built, the nature of its structure.

ANSWER

4tan²∅ -4/cosø

Posted by Enjoy Sutradhar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Ramakant Gupta 5 years, 2 months ago

Ans: -4

Deep B 5 years, 2 months ago

Tan²□ +1 = Sec²□ And 1/cos□ = sec□ So 4( sec²□ - 1) -4sec²□ = -4

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Find a quadratic polynomial whose sum and product of its zeros are -1/4,1/4 respectively....

Posted by Sneha Mohabe 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

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The angle between the two tangents to a circle may be 0° True or False.

Posted by Shashank Mishra 5 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Kakul Jain 5 years, 2 months ago

False

Lets Enjoy With Aditya Raj 5 years, 2 months ago

False

Prity Lakra 5 years, 2 months ago

False

Navya Jain 5 years, 2 months ago

A S 5 years, 2 months ago

False

ANSWER

Real number formal

Posted by Nirmal Gurjar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If the common difference of an AP is 3, then what is 15 9 a a- ?

Posted by Arfan Ali Biswas 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Use Euclid's algorithm to find the HCF of 4052 and 12576.

Posted by Jeell Shah 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Neel Menghani 5 years, 2 months ago

According to Euclid’s Division Lemma if we have two positive integers a and b, then there exist unique integers q and r which satisfies the condition a = bq + r where 0 ≤ r ≤ b. HCF is the largest number which exactly divides two or more positive integers. Since 12576 > 4052 12576 = (4052 × 3) + 420 420 is a reminder which is not equal to zero (420 ≠ 0). 4052 = (420 × 9) + 272 271 is a reminder which is not equal to zero (272 ≠ 0). Now consider the new divisor 272 and the new remainder 148. 272 = (148 × 1) + 124 Now consider the new divisor 148 and the new remainder 124. 148 = (124 × 1) + 24 Now consider the new divisor 124 and the new remainder 24. 124 = (24 × 5) + 4 Now consider the new divisor 24 and the new remainder 4. 24 = (4 × 6) + 0 Reminder = 0 Divisor = 4 HCF of 12576 and 4052 = 4.

Nilesh Gund 5 years, 2 months ago

12576=4052×3+420 4052=420×9+272 420=272×1+148 272=148×1+124 148=124×1+24 124=24×5+4 24=4×6+0 HCF of 12576 and 4052 is 4.

Abhishek Panda 5 years, 2 months ago

12576=4052×3+420 4052=420×9+272 420=272×1+148 272=148×1+124 148=124×1+24 124=24×5+4 24=4×6+0 HCF of 12576 and 4052 is 4.

ANSWER

The vertex or the triangle formed by drawing the equations x+y=5, x-y =5 and x=0 present on the axis on the graph is:

Posted by Khushiram Yadav 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

word problems of quadratic equation will come or not in board exam

Posted by Mukunda Madhab Dutta 5 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Anuj Agrawal 5 years, 2 months ago

No Bhai

Navya Jain 5 years, 2 months ago

Chanvi Verma 5 years, 2 months ago

Riya Surniyal 5 years, 2 months ago

Noo

2Thank You

Harshit Yadav 5 years, 2 months ago

No bro

ANSWER

(cosec theta - sin theta) (sec theta - cos theta) = sin theta cos theta.

Posted by Bindu N Gowdar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Aditya Jha 5 years, 2 months ago

LHS=(cosec theta-sin theta)(sec theta-cos theta) (1/sin theta-sin theta)(1/cos theta-cos theta) (1-sin²theta/sin theta)(1-cos²theta/cos theta) (Cos²theta/sin theta)(sin²theta/cos theta) Sin theta cos theta

Rohit Baghel 5 years, 2 months ago

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Mr. Bhavani Parshad bought certain number of note books from Rs.200. Five of these are stolen. He sold the rest of the books for Rs.4 more than he paid for each and made a profit of Rs.40. How many books did he buy?

Posted by Yogita Mohanta 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Archita Goyal 5 years, 2 months ago

No of books stolen = 5 Let the books sold by him = x Profit made by him by seeling x books = 40 Profit made on each note book = Rs 4 So, x×4 = 40 x= 40/4 x = 10 Therefore number of books bought by him = 10+5 =15

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A pen stand made of wood is in the shape of a cuboid depressions to hold pens the dimensions of the cuboid are 15cm by 10cm by 3.5cm. the radius of each of the depressions is 0.5cm and the depth is 1.4cm. find the volume of wood in the entire stand

Posted by Bhavneet Nema 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Prity Lakra 5 years, 2 months ago

Volume of wood=volume of cuboidical part - volume of conical part = l×b×h - ⅓ pie r²h = (15×10×3.5 ) - ( ⅓×22/7 ×0.5×0.5×1.4) = 525 cm³ - 1.46 cm³ =523.54 cm³

2Thank You

Ravi Chauhan 5 years, 2 months ago

ANSWER

find the value of K for which the equation x power2 + K (2 x-K-1) + 2 = 0 has real and equal roots

Posted by Avani V.N 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Quadratic equations how to check

Posted by Shreya Pandey 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Prity Lakra 5 years, 2 months ago

ax²+bx+c=0 If the highest power of an equation is 2 , then it is Quadratic equation

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The slant height of a cone is 12cm. If the radius of the cone is 5cm, find the height of the cone.

Posted by Najia Begum 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Good Day 5 years, 2 months ago

Base = Radius = 5cm , slant height = hypotenuse =12cm Height = perpendicular = ? By Pythagoras theorem H^2 = B^2 + P^2 12^2 = 5^2 + P^2 144 = 25 + P^2 144 - 25 = P^2 119 = P^2 √119 = P 10•90 cm P

Khushi 5 years, 2 months ago

r= 5 cm, l= 12 cm using formula , l= √r²+h² = h=√l² - r²=√12²-5² = 10.91cm

ANSWER

Solve for x and y .. x+y=14 X-y=4

Posted by Amrita Lepcha 5 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Navya Jain 5 years, 2 months ago

Y=5,x=9

Navya Jain 5 years, 2 months ago

Y=5,x=8

Good Day 5 years, 2 months ago

x+y = 14 x-y = 4 Eliminate eq. 1 and 2 2y = 10 y = 5 Putting the value of y in eq. 1 x+y = 14 x+5 = 14 x = 14 - 5 x = 9

Arpita Singh 5 years, 2 months ago

Add x+y = 14 and x-y =4, you will get 2x= 18 then, x = 9 . Now put the value of x in x+y =14 you will get, 9 + y = 14 , then y = 5

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A survey regarding the height (in cm) of 51 girls of class X of a school was conducted and the following data was obtained

Posted by Quinn Girl 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Arpita Singh 5 years, 2 months ago

Please ask full question I am not able to understand

Jay Boricha 5 years, 2 months ago

Cbno

ANSWER

??? ? + ??? ? = 1, ? = 30° and B is an acute angle, then find the value of B

Posted by Piyush Gupta 5 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Karan Pandit 5 years, 2 months ago

SinA+cosB=1 Sin30+cosB =1 1/2+cosB=1 CosB=1-1/2 CosB=2-1/2 CosB=1/2 CosB= cos60 B=60 Ans

Piyush Gupta 5 years, 2 months ago

Sina + Cosb =1 Sin30 +cosb = 1 1/2+cosb=1 Cosb =1-1/2 Cosb=1/2 We know that cos60 = 1/2 =}B= 60

2Thank You

Nikita Godwal 5 years, 2 months ago

Sin30° + cos 60° = 1 (Sin 30° = 1/2 And cos 60° also 1/2) 1/2+1/2=2/2 that is 1

Nikita Godwal 5 years, 2 months ago

B= 60°

4Thank You

ANSWER

If two tangents are inclined at 60°are draw to a circle if radius 3cm then find length of each tangent.

Posted by Mrignayanee Kashyap 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

A K47 5 years, 2 months ago

The length of tangent is 3√3 by using trigonometry

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? ????? ??????????? ?????? ?? ???? ?? ?????.??? ???? ????? ????? ?????? ??? ???? ?????? ??? ?????? ?? ????? ?? ??? ????? ??????????? ???? ?? ?????? ?? ????? ???? ??????

Posted by Himanshu Pandey 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Nikita Godwal 5 years, 2 months ago

3 cones needed.

ANSWER

Prove that 7√5 is irrational number

Posted by Aman Gurjar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Gautam Kumar 5 years, 2 months ago

This is very easy You have to solve it by contradictory method. You have to prove ur statement wrong in this question Let if possible 7√5 is a rational number =7√5=a/b =√5=a/5b both a and b are integers so that a/5b is rational and so √5 is also rational This contradicts the fact that√5 is irrational number. This assumption is wrong so 7√5 is irrational.

Piyush Gupta 5 years, 2 months ago

Let if possible 7√5 is a rational number =7√5=a/b =√5=a/5b both a and b are integers so that a/5b is rational and so √5 is also rational This contradicts the fact that√5 is irrational number. This is due to our wrong assumption So that 7√5 is irrational number. THANK YOU

ANSWER

Prove that 7√5 is irrational number

Posted by Aman Gurjar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Neel Menghani 5 years, 2 months ago

Let us assume that 7√5 is rational number Hence 7√5 can be written in the form of a/b where a,b(b is not equal to 0) are co-prime ⟹7√5=a/b ⟹√5=a/7b But here √5 is irrational and a/7b is rational as Rational is not equal to Irrational This is a contradiction so 7√5 is a irrational number

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Find the value of a when distance between the point ( 3,a) (4, 1) is √10 .

Posted by Aman Gurjar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Nikita Godwal 5 years, 2 months ago

a=4

ANSWER

Find the distance between pair of points (a sin a, -b cos a) (-a cos a, b sin a)

Posted by Aman Gurjar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Gautam Kumar 5 years, 2 months ago

This cannot be typed here it can be done only on paper

ANSWER

In trignometery how to know , what is base, perpendicular and hypotenuese

Posted by Aditya Panigrahi 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Swarnamudra Sahu 5 years, 2 months ago

In the right angled triangle the opposite side of the right angle is known as hypotenuse . And other two sides are base and height respectively.

Arunasree Mogasala 5 years, 2 months ago

The opposite side of the given angle is known as perpendicular And the side opposite to the right angle is known as hypotenuse (the longest side in rudgt angled triangle)

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The mean of the following frequency distribution is 24. Find the value of p

Posted by Ayona Dey 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the LCM and HCF of the following pairs of integers and verify that LCM × HCF = product of the two numbers. 198 and 144

Posted by Anjali Choudhary 5 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Sakshi Dhakad 5 years, 2 months ago

LCM (198,144) = 2×2×2×2×3×3×11 = 1584 HCF =2×3×3=18 LCM ×HCF = products of two numbers 1584×18=198×144 28512=28512

Aditya Panigrahi 5 years, 2 months ago

Apna number do na

Sofia Sharma 5 years, 2 months ago

144= 2 x 2 x 2 x 2 x 3 x 3 198= 2 x 3 x 3 x 11 LCM = 2^4 x 3^2 x 11 = 1584 HCF. = 2 x 3x 3 = 18 LCM x HCF = products of two numbers 1584 x 18 = 198 x 144 28512. = 28512 Therefore LHS = RHS

Ravi Singh 5 years, 2 months ago

It is very Simple

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A vessel is in the form of a hollow hemisphere mounted by a hollow cylinder. The diameter of the hemisphere is 14 cm and the total height of the vessel is 13 cm .find the inner surface area of the vessel

Posted by Pratiksha Gurung 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Prove that 4-3✓2 is an irrational number

Posted by Marzia Ahmad Zaidi 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Swarnamudra Sahu 5 years, 2 months ago

Let us assume that 4-3root 2 is rational So we can write 4-3root 2 as a/b where a and b are co prime & b is not equal to 0 4-3 root 2=a/b -3root 2 =a/b -4 -3root 2=a-4b/b root 2 = a-4b/3b root 2=-a-4b /3b Here root 2 is an irrational number. But a-4b/-3b or -a-4b/3b is rational number. Therefore it is a contradiction to our assumption that 4-3 root 2 is a rational number. Thus 4-3 root 2 is irrational number Hope it helps