2√3 + √3 is equal to
2√3 + √3 =3√3 It is an example of adding two irrational numbers. On taking out √3 as common factor √3(2+1) =... View Article
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What will be the cost of fencing rectangular compound if the wire cost 20 rs per meter? Also, the area is 40 m2 and length = 2 × breadth?
Given,Area = 40 m2Length = 2 × breadthLength × Breadth = 402 × Breadth × Breadth = 40(Breadth)2 = 40/2... View Article
Find the smallest 4 digit number divisible Of 18, 24 and 32.
18 = 2 × 3 × 324 = 2 × 2 × 2 × 332 = 2 × 2 ×... View Article
What is the meaning of ‘real and distinct roots’, and ‘real and equal roots’?
If an equation has real roots, then the solutions or roots of the equation belongs to the set of real... View Article
Find the equation of a line with slope 1 and cutting off an intercept of 4 units on y-axis.
From the given,Slope of a line = m = 1y-intercept = c = 4 unitsThe equation of a line with... View Article
What is the value of sec0°?
We know that, cos 0° = 1sec 0° = 1/cos 0°= 1/1= 1Therefore, sec 0° = 1.
How to solve 2y + 5/2 = 37/2?
2y + 5/2 = 37/2Step 1: Subtract 5/2 from both sides.2y + 5/2 – 5/2 = 37/2 – 5/2Step 2:... View Article
Why do we use average ? Are there any limitations to their use? Illustrate with your example related to development?
We use averages to compare differing quantities of the same category. For example, to compute the per-employee salary of an... View Article
What is the multiplicative inverse of 0/1?
We know that the multiplicative inverse of x is 1/x. So the multiplicative inverse of 0/1 is 1/ (0/1) =... View Article
Which one of the following is a regular polyhedron?
(a) Cube (b) Cuboid (c) Square pyramid (d) Rectangular prismCorrect answer: (a) Cube.A polyhedron is regular if its faces are... View Article
If 9999 = 4, 8888 = 8, 1816 = 6, 1212 = 0, then, 1919 = ?
Given,9999 = 4, 8888 = 8, 1816 = 6, 1212 = 0The above patterns can be idenfied by assuming some... View Article
Expand (2a – 3b)3.
(2a – 3b)3 Using the formula (x – y)3 = x3 – y3 – 3xy(x – y), (2a – 3b)3... View Article
Who is Karnataka Sangeetha Pithamaha?
Purandaradasa is known as Karnataka Sangeetha Pithamaha. His original name is Srinivasa Nayaka. He was born in 1484 Kshemapura, near... View Article
To change line height to 1.5 we use shortcut key
(a) Ctrl+1 (b) Ctrl+2 (c) Ctrl+3 (d) Ctrl+5Correct answer: (d) Ctrl+5To change line height to 1.5 we use shortcut key... View Article
Which of the following cannot be recycled?
(a) Toys (c) Cooker handles (b) Carry bags (d) Plastic chairCorrect answer: (b) Cooker handlesCooker handles cannot be recycled, whereas... View Article
How is migration a determinant factor of population change?
Migration is a determinant factor of population change since it is the movement of people across regions. Hence, it changes... View Article
Who are weavers? Name four weaving centres in India.
Weavers often belonged to communities that specialised in weaving. The tanti weavers of Bengal, sale and kaikollar and devangs of... View Article
The domain of the earth consisting of solid rocks is
(a) the Atmosphere(b) the Hydrosphere(c) the Lithosphere(d) None of theseCorrect answer: (c) the LithosphereThe domain of the earth consisting of... View Article
Define cell range in Ms excel.
A cell range in Ms Excel is a collection of chosen cells. It can be referred to in a formula.... View Article
Sri Lanka emerged as an independent nation in (a) 1945 (b) 1942 (c) 1947 (d) 1948
The correct answer: is (d) 1948 Sri Lanka emerged as an independent nation in the year 1948. Sri Lanka emerged as... View Article
