Stereo or mono?
Mono is an indicator that the word following is indicating one of something or a single part. Which one has just one expression?
9 3
---- = --------
5 x
9x = 15
x = 15/9 or 1 2/3 or 5/3
hope this helps :)
The correct answer is a , i hope this helps out
Answer:
The answer is d.
Step-by-step explanation:
As we know, sin x= cos (90°-x)
sin 18° = cos (90°-18°)
= cos 72°.
Similarly, sin 72°= cos (90°-72°)
= cos 18°
But, sin 55°= cos (90°-55°)
= cos 35°