Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 4 (Q.No. 3)
3.
The equation sin (z) = 10 has
no real or complex solution
exactly two distinct complex solutions
a unique solution
an infinite number of complex solutions
Answer: Option
Explanation:

Since value lies between - 1 and + 1. Therefore no real or complex solution exists.

Discussion:
3 comments Page 1 of 1.

Shiv Sagar said:   3 years ago
Answer: (x=(2n+1)x(pi/2),y=+/-(2.993)). So it should be (D) i.e. an infinite number of complex solutions.

Bemish said:   5 years ago
Here sin(Z) is unbounded in the complex plane.

Vanamali said:   8 years ago
Given answer is wrong. Z = 1.5708 - 2.9932i yields sin(z) = 10.

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