Answer:
see explanation
Step-by-step explanation:
Using the Pythagorean identity
cos²A + sin²A = 1 ( divide terms by cos²A )
+ = , that is
1 + tan²A = sec²A ← as required
Answer:
75+75×15/100=75+11.25=86.25$
20 - 21 - 10 + 5x +1= 0
5x = 10
x = 2
Answer:
-3.5
Step-by-step explanation:
-8p + 14 = 42
-8p = 28 substract 14 from both sides
p = -3.5 divide both sides by -8