Students and Teachers Forum
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(क) विपरीतार्थक (ख) पर्यायवाची (ग) अनेकार्थी (घ) .....
(क) दाइ भाइलाई भकुन्डो खेलाउनुहुन्छ । (ख) ऊ चकचक गर्छ अनि सजाय पाउँछ । (ग) तिमीलाई त्यो किताब मन .....
I am a bit early, aren't I? Rule: A positive statement should have a negative tag. The question tag for ‘I am’ is ‘aren’t I?’ Examples: I am a student, aren't I? .....
Here, kinetochore complex is the place on either side of the centromere to which the spindle fibers are attached during cell division. This type of chromosome is called as holocentric chromosome. Holocentric chromosomes have the unusual .....
Telocentric chromosomes: Telocentric chromosome are the chromosomes which have the centromere at the proximal end (tip) of the chromosome. These are long rod like chromosome. They arppear as 'I' shaped structure in the metaphase .....
Hybrids are of different types like monohybrids, dihybrids, trihybrids and polyhybrids. Monohybrid possesses only one pair of contrasting characters. Dihybrid possesses two pairs of contrasting .....
Vegetative reproduction is a kind of asexual reproduction which occurs when a new plant grows from an existing part of an old plant. In farming, vegetative reproduction means cutting a tree branch below its center joint, planting it in some .....
Trashna, could you please send us the complete sentences of this query? Let me know after you have reviewed the .....
You know that sexual reproduction takes place by the fusion of a male gamete and a female gamete. The process of the fusion of male and female gametes is called fertilization. Normally, a single male gamete fuses with a single female gamete during .....
Ecological pyramid are made up of different bars. Each of the bars represents a different group of organisms and their order. This order is based on who eats whom. Energy moves up the pyramid, starting with the producers, such as .....
One advantage of UV ray is: - It helps in production of Vitamin D. One disadvantage of UV ray is: - Exposure to UV rays cause Skin .....
Rinku said that he was reading a story. My father advised me to do my work. Mohan said that he was going .....
Chlorophyll absorbs the sun’s energy. This energy splits water molecules into hydrogen and oxygen. Oxygen is released from the leaves into the atmosphere. Hydrogen and carbon dioxide are used to make food. In this way, plants prepare .....
In human body, blood circulation takes place in two processe. They are: 1. Systemic circulation and 2. Pulmonary .....
Here, tanα = 3/4 We know, Secα = √[ 1 + tan2α ] = √[ 1 + (3/4)2 ] = √[ 1 + 9 / 16] .....
2. Organic insecticides are eco-friendly and cause no harm to crops. Inorganic insecticides are highly toxic and may cause harm to crops. 3. Examples of organic insecticides are: Nicotine, neem oil, pyrethrum etc. .....
(ii) Since BD is the bisector of the ∢ABC. then, ∢BCA = ∢BDA = 67∘ [ Incribed angles standing on same arc] ∢DBC = ∢DBA = 43∘ [ Given, BD is the bisector of the ∢ABC. ] Now, ∢ADC + ∢ABC = 180∘ .....
(i) Here, ∡DBC = 25o, Now, ∡ABC = 90o [ Incribed angle made in semicircle] ∡DBC + ∡ABD = 90o or, 25o + ∡ABD = 90o or, ∡ABD = 90o - 25o = 65o Now, ∡AED .....
Sometimes, coronary artery gets blocked by a blood clot. This prevent the blood from flowing towards the heart muscles. As a result, an area of the heart muscle become damage or die. This is called as a heart .....
625a4 + 4b4 = (25a2)2 + (2b2)2 = (25a2 + 2b2)2 - 2. 25a2. 2b2 [ a2 + b2 = (a + b)2 - 2ab] = (25a2 + 2b2)2 - 100a2b2 = (25a2 + 2b2)2 - (10ab)2 = (25a2 + .....
42x-1 = 2x+1 or, 22(2x-1) = 2x+1 [ 4 = 22] or, 24x - 2 = 2x+1 or, 4x - 2 = x + 1 { xa = xb implies = a = b] or, 4x - x = 1 + 2 or, 3x = 3 or, x = .....
Here, y = 3x ...........(i) and, x - y = 2 ............. (ii) put y = 3x in equation (ii) from (i), we get x - 3x = 2 or, - 2x = 2 or, x = -2/2 or, x = -1. Now from (i), y = 3x = 3 x (-1) = - 3 [ .....
Given, ∡A = 2x⁰, ∡B = 3x⁰ and ∡ACD = 115⁰ we know, ∡A + ∡B = ∡ACD [ sum of opposite interior angles is equal to external angle] or, 2x⁰ .....
Since, ∆ABC ∼ ∆DEF then the ratios of corresponding sides are equal So we can write, AC/DF = AB/DE or, 41/82 = AB/18 .....
Now, required number of bricks for paving = Area of the floor/area of a brick .....
Here, minimum cost upto 20 units = Rs. 80 Now, units that cost Rs. 7.30 per unit = 27 - 20 = 7 units cost of 7 units = 7 x 7.30 = Rs. 51.1 Hence, total charge to be paid = cost of 20 units + cost of 7 units .....
Here, length of the room (l) = 8 m. breadth of he room (b) = 75% of length .....
Here, Area of base of the prism (A) = 44 cm2 Height of the prism (h) = 22 cm. Now, volume of the prism (V) = ? We know, V = (1/3) x Ah or, V = (1/3) x 44 x 22 or, V = 322.66 .....