CLASS 10 URDU ALL

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CLASS 10 GEOGRAPHY TOPIC AGRICULTURE

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  NCERT Solutions for Class 10 Geography Chapter 4 – Agriculture The solutions for Chapter 4 of Agriculture are given below. Students should also check  NCERT Solutions for Class 10  for other subjects. Exercise Page No 46 1. Multiple choice questions. (i) Which one of the following describes a system of agriculture where a single crop is grown on a large area? (a) Shifting Agriculture (b) Plantation Agriculture (c) Horticulture (d) Intensive Agriculture Answer: Plantation agriculture (ii) Which one of the following is a rabi crop? (a) Rice (c) Millets (b) Gram (d) Cotton Answer: Gram (iii) Which one of the following is a leguminous crop? (a) Pulses (c) Millets (b) Jawar (d) Sesamum Answer: Pulses 2. Answer the following questions in 30 words. (i) Name one important beverage crop and specify the geographical conditions required for its growth. Answer: One important beverage crop is tea. The tea plant grows well in tropical and sub-tropical climates endowed with deep and f...
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CLASS 10 QUADRATIC EQUATION

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  Access Answers to NCERT Class 10 Maths Chapter 4 – Quadratic Equations Exercise 4.1 Page: 73 1. Check whether the following are quadratic equations: (i) (x + 1) 2  = 2(x – 3) (ii) x 2  – 2x = (–2) (3 – x) (iii) (x – 2)(x + 1) = (x – 1)(x + 3) (iv) (x – 3)(2x +1) = x(x + 5) (v) (2x – 1)(x – 3) = (x + 5)(x – 1) (vi) x 2  + 3x + 1 = (x – 2) 2 (vii) (x + 2) 3  = 2x (x 2  – 1) (viii) x 3  – 4x 2  – x + 1 = (x – 2) 3 Solutions: (i) Given, (x + 1) 2  = 2(x – 3) By using the formula for (a+b) 2  = a 2 +2ab+b 2 ⇒ x 2  + 2x + 1 = 2x – 6 ⇒ x 2  + 7 = 0 Since the above equation is in the form of ax 2  + bx + c = 0. Therefore, the given equation is quadratic equation. (ii) Given, x 2  – 2x = (–2) (3 – x) ⇒ x 2  –   2x = -6 + 2x ⇒ x 2  – 4x + 6 = 0 Since the above equation is in the form of ax 2  + bx + c = 0. Therefore, the g...
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