Construct an equilateral triangle of side 6 cm and mark the incircle.
Step 1: Draw a line segment AB = 6cm. Step 2: Construct an equilateral triangle by making an angle of... View Article
Step 1: Draw a line segment AB = 6cm. Step 2: Construct an equilateral triangle by making an angle of... View Article
Let 0 be the nth term of given AP in a way that an = 0. a = 31 d... View Article
Multiples of 175: 175, 350, 525, 700, 875, 1050, 1225, 1400, 1575, 1750, 1925, 2100, 2275, 2450, 2625, 2800, 2975,... View Article
Consider the given function. \(\begin{array}{l}{cosec} \mathrm{A}+\cot \mathrm{A}=\mathrm{p} \ldots(1)\\ \text { Now, } {cosec}^{2} \mathrm{~A}-\cot ^{2} \mathrm{~A}=1\\ \Rightarrow({cosec} A+\cot A)({cosec} A-\cot... View Article
Statement: “In a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the... View Article
Let the height of the triangle be h. The given triangle is isosceles in nature. Let base = height =... View Article
The given expression is \(\begin{array}{l}\tan \left(7 \frac{1^{\circ}}{2}\right) . \\ =\frac{\sin 7 \frac{1}{2}^{\circ}}{\cos 7 \frac{1}{2}^{\circ}}=\frac{\sin ^{2} 7 \frac{1}{2}^{\circ}}{\sin 7 \frac{1}{2}^{\circ} \cos... View Article
The given expression is \(\begin{array}{l}\begin{array}{l} \mathbf{a}^{6}-\mathbf{b}^{6}\\ =\left(\mathbf{a}^{2}\right)^{3}-\left(\mathbf{b}^{2}\right)^{3}\\ \left(\mathbf{a}^{3}-\mathbf{b}^{3}\right)=(\mathbf{a}-\mathbf{b})\left(\mathbf{a}^{2}+\mathbf{a b}+\mathbf{b}^{2}\right)\\ =\left(\mathbf{a}^{2}-\mathbf{b}^{2}\right)\left[\left(\mathbf{a}^{2}\right)^{2}+\mathbf{a}^{2} b^{2}+\left(\mathrm{b}^{2}\right)^{2}\right]\\ =(a+b)(a-b)\left[\left(a^{2}\right)^{2}+2 a^{2} b^{2}+\left(b^{2}\right)^{2}-a^{2} b^{2}\right]\\ =(a+b)(a-b)\left[\left(a^{2}+b^{2}\right)^{2}-a^{2} b^{2}\right]\\ =(\mathbf{a}+\mathbf{b})(\mathbf{a}-\mathbf{b})\left[\left(\mathbf{a}^{2}+\mathbf{b}^{2}+\mathbf{a b}\right)\left(\mathbf{a}^{2}+\mathbf{b}^{2}-\mathbf{a b}\right)\right]... View Article
Assume that in a family, each child is equally likely to be a boy or a girl. \(\begin{array}{l}S=\{(B, B, B),(G,... View Article
P = Rs. 20,000 R = 10 % T = 3 years A = 20000 (1 + (10 / 100))3 ... View Article
1] Pentagonal Pyramid Number of faces (F) = 7 Number of edges (E) = 15 Number of vertices (V) =... View Article
Consider the LHS of the given expression \(\begin{array}{l}{L.H.S: } \frac{\cos ^{3} A-\cos 3 \mathbf{A}}{\cos A}+\frac{\sin ^{3} A+\sin 3 \mathbf{A}}{\sin A}... View Article
64 : 9 : : 81 : ? √64 = 8 : The next number to 8 is 9 :... View Article
The two conditions given are 228 = 12 and 337 = 16. In first condition, 2 * 2 + 8... View Article
It is given that the arithmetic mean is 13. \(\begin{array}{l}\frac{27+23+x-4+x+4+15+3+7}{7}=13 \\ \frac{75+2 x}{7}=13 \\ 75+2 x=91 \\ 2 x=16 \\... View Article
The given set of numbers are obtained by Xying a particular number by 9, 7 and 5 respectively. 63 =... View Article
Let p (x) = x31 + 31 Divisor = x + 1 Remainder = p (- 1) = (- 1)31... View Article
The given expression can be written as \(\begin{array}{l}4^{3} \times 4^{\frac{1}{2}}: 2^{5} \\ 64 \times 2: 32 \\ 128: 32 \\... View Article
4x2 + 4 √3x + 3 = 0 a = 4, b = 4 √3 and c = 3 D... View Article
4x – (3y – x + 2z) = 4x – 3y + x – 2z = 5x – 3y –... View Article