Q) If cot θ = then evaluate that Ans: Please do press “Heart” button if you liked the solution.
If cotθ = 15/8, then evaluate (2 + 2 sinθ)(1 – sinθ)/(1 + cosθ)(2 – 2 cosθ) Read More »
February 2024
Q) IF sec θ=(x + 1/4x) then prove that sec θ + tan θ = 2x or 1/2x Ans: Given When When Therefore, value of Please do press “Heart” button if you liked the solution.
IF Sec θ=(x+1/4x) then prove that secθ +tanθ =2x or 1/2x Read More »
Q) Solve the following quadratic equations by factorization method: Ans: Please do press “Heart” button if you liked the solution.
Solve the following quadratic equation by factorization method: 4(√3)x2 + 5x – 2√3 = 0 Read More »
Q) Solve the following quadratic equations by factorization method: Ans: Please do press “Heart” button if you liked the solution.
Solve the following quadratic equation by factorization method: 1/(a+b+x) = 1/a + Read More »
Q) Vinita and Ahmed demonstrated a circuit that operates the two headlights and the two sidelights of a car, in their school exhibition. Based on their demonstrated circuit, answer the following questions. (i) State what happens when switch A is connected to a) Position 2 b) Position 3 (ii) Find the potential difference across each
Vinita and Ahmed demonstrated a circuit that operates the two headlights and the Read More »
Q) In a school examination hall, the teacher makes students sit in such a way that no students can cheat from other student. So, the teacher decides to mark the numbers on each chair from 1. 2. 3……. If there are 26 students and each student is seated at alternate position in examination hall such that
In a school examination hall, the teacher makes students sit in such a way that Read More »
Q) From a point on the ground, the angles of elevation of the bottom and top of a transmission tower fixed at the top of 20m high building are 450 and 600 respectively. Find the height of the transmission tower. Ans: Step 1: Let’s start by drawing a diagram for this question: Here, we can see AB is
From a point on the ground, the angles of elevation of the bottom Read More »
Q) The slant height of a frustum of a cone is 4 cm and the perimeters of its circular ends are 18 cm and 6 cm. Find the curved surface area of the frustum.Ans: STEP BY STEP SOLUTION Let’s draw a diagram for this question to understand it better: [Note: Since a frustum is a
The slant height of a frustum of a cone is 4 cm and the perimeters of its circular ends Read More »
Q) 21 glass spheres, each of radius 2 cm are packed in a cuboidal box of internal dimensions 16 cm × 8 cm × 8 cm and, then the box is filled with water. Find the volume of water filled in the box. Ans: STEP BY STEP SOLUTION Let’s draw a diagram for this question
Q) A well of diameter 3m is dug 14m deep. The earth taken out of it has been evenly spread out in the form of a circular ring of width 4m to form an embankment. Find the height of the embankment. Ans: STEP BY STEP SOLUTION Let’s draw a diagram for this question to understand