Question
The group velocity of matter waves associated with a
moving particle is:Solution
The correct answer is C
- If X = 15°, find the value of:
sin²(3X) + cos²(4X) - tan²(2X) In an election involving two parties, 16% of the total votes were invalid. One of the candidates received 58% of the valid votes, and the other got 19,0...

Take θ = 450
If A + B = 450 , then the value of 2(1 + tanA) (1 + tanB) is:
- Find the maximum value of (8sin A + 6cos A).
If (2sin A + cos A) = 3sin A, then find the value of cot A.
The angle of depression of vertex of a regular hexagon lying in a horizontal plane, form the top of a tower of height 135 m located at the centre of the...
If tan 4θ = cot 14θ, then find the value of cos 9θ.
Simplify: sin 780° sin 480° + cos 120° sin 30°
Simplify:
8sin 27° sec 63° + 3cot 64° cot 26°