Question

f(x)= sgn (x),then value of f(sin4) is



.
hey expert and all.... answer it ​

Answer 1

Answer:

Answer is -1

Step-by-step explanation:

sgn funⁿ gives 1 when greater than 1

0 when equal to 0

-1 when less than 1

so 1 rad ≈57°

4 rad≈229°. which is less than 270° so it lies in 3rd quadrant,there sin is negative so , the value inside the sgn funⁿ is negative therefore the answer is -1.

please mark brainliest if helpful and do follow