Question
Which of the following is TRUE for PROM
memories?Solution
PROM (Programmable Read Only Memory) is a type of ROM in which the data is written once after manufacturing by the user. Its internal structure is such that the AND gate array is fixed to generate all possible minterms, while the OR gate array is programmable so that selected minterms can be combined to implement the desired output logic. Hence, PROM is known as a "fixed AND – programmable OR" type of memory.

Find the value of sin(θ) if 2sinθ = tanθ, for 0 < θ < 90°.
Simplify the following trigonometric expression:Â
15 cos 25° cosec 65° − 5 cot 80° cot 10°

If sin5A = cos(2A+20°), then what is the value of A? Given that 5A is an acute angle.
- Find the maximum value of (10sin A + 24cos A).
- Simplify the following trigonometric expression:
15 cos 27° sec 63° − 9 cot 61° tan 29° cot 17Ëš Â
 cot 18˚  ...