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SonuNewbie

Asked: August 9, 2021In: NCERT Class 9th Maths

. In right triangle ABC, right angled at C, M is the mid-point of hypotenuse AB. C is joined to M and produced to a point D such that DM = CM. Point D is joined to point B (see Fig. 7.23). Show that:(ii) DBC is a right angle. (iii) ΔDBC ΔACB (iv) CM = ½ AB. Q.8(2),(3),(4)

Find this important question of ncert class 9th of chapter triangles .Sir please help me to find out the easiest ...Read more

mehakNewbie

Asked: June 28, 2023In: CBSE

3. A cottage industry produces a certain number of toys in a day. The cost of production of each toy (in rupees) was found to be 55 minus the number of articles produced in a day. On a particular day, the total cost of production was Rs. 750. If x denotes the number of toys produced that day, form the quadratic equation to find x.

Explain, how did we split the number in the equation. How to prove? Class 10th, Statistics, Rd sharma, Mathematics.

mehakNewbie

Asked: July 31, 2023In: CBSE

15. An iron spherical ball has been melted and recast into smaller balls of equal size. If the radius of each of the smaller balls is 1/4 of the radius of the original ball, how many such balls are made? Compare the surface area of all the smaller balls combined together with that of the original ball.

Explain the question using formulas given in the chapter. Class 10th Cbse, RD Sharma.

Deepak BoraNewbie

Asked: July 14, 2020In: CBSE, ICSE

Prove that : ( cos A–sin A+1)/( cos A +sin A–1) = cosec A + cot A, (using the identity cosec^2A = 1+cot2A).

Prove the following identities, where the angles involved are acute angles for which the expressions are defined. NCERT Maths Solutions class ...Read more

Deepak BoraNewbie

Asked: July 16, 2020In: ICSE

Ratio and proportion

Ratio and proportion class X

Deepak BoraNewbie

Asked: July 31, 2020In: CBSE, ICSE

Which term of the AP 5 /6 , 1, 1 1 /6 , 1 1 /3 , ….. is 3?

This is the Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE Board. Here ...Read more

Deepak BoraNewbie

Asked: July 31, 2020In: CBSE, ICSE

How many three-digit natural numbers are divisible by 7?

This is the Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE Board. Question ...Read more

1 … 318 319 320 … 360

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Discy Latest Questions

. In right triangle ABC, right angled at C, M is the mid-point of hypotenuse AB. C is joined to M and produced to a point D such that DM = CM. Point D is joined to point B (see Fig. 7.23). Show that:(ii) DBC is a right angle. (iii) ΔDBC ΔACB (iv) CM = ½ AB. Q.8(2),(3),(4)

Prove that : ( cos A–sin A+1)/( cos A +sin A–1) = cosec A + cot A, (using the identity cosec^2A = 1+cot2A).

Ratio and proportion

Which term of the AP 5 /6 , 1, 1 1 /6 , 1 1 /3 , ….. is 3?

How many three-digit natural numbers are divisible by 7?