Tan(x)= sin(x)/cos(x), therefore, substitute sin(x)/cos(x) in the expression:
=(cos(x)(sin(x)/cos(x))-1)/cos^2(x)
simplify the 2 cos(x):
=(sin(x)-1)/cos^2(x)
Sin^2(x)+ cos^2(x)=1, sin^2(x)-1=- cos^2(x), substitute in the expression:
= -cos^2(x)/cos^2(x)= -1
Answer:
Step-by-step explanation:
See the attached picture for explanation.
It looks as if you already solved it, am I missing something? Please inform me of my mistake asap so I can help you
Answer:
12x+25
Step-by-step explanation:
7x+7+5x+15+3
12x+25
30 feet below see level is(-30)
A 15-yard gain(15)
500 feet above see level (500)
A los of 500 points (-500)
A deposit of 30 dollars (30)
A decrease of 15 degrees(-15)
