Question
Which of the following statement is correct?
>I. Friction is caused by the irregularities on the two surfaces in contact II. Friction is a necessary evilSolution
Friction is caused by interlocking of irregularities present on the surfaces in contact. Friction is said to be a necessary evil because it is useful as well as harmful. Friction helps us to walk, write, hold things, lift objects.
Sec A -Tan A = 1/16 then find the value of cot A =?
A man observes the top of a tower at an angle of elevation of 30°. He walks 100 meters closer to the tower, and the angle of elevation becomes 60°. If...
if 8 sin 2 x + 3 cos 2 x = 4  then find tan x
What is the value of cos75°?Â
sin2 7 ° + sin2 8 ° + sin2 9 ° + sin2 10 ° + ……… + sin2 83 ° = ?
...Solve for x in the interval [0, 2π]: 2 sin²x + 3 sinx - 2 = 0.
If X = 15°, find the value of:
sin²(4X) + cos²(3X) - tan²(2X)If sin5A = cos(2A+20°), then what is the value of A? Given that 5A is an acute angle.
A flagpole stands on top of a building. From a point 50 meters away from the base of the building, the angle of elevation to the top of the building is ...
Relevant for Exams:
