Answer:
Proving a trigonometric identity refers to showing that the identity is always true, no matter what value of x x x or θ \theta θ is used. Because it has to hold true for all values of x x x, we cannot simply substitute in a few values of x x x to "show" that they are equal.
Step-by-step explanation:
Math
Answer:
f(5) = 23
Step-by-step explanation:
replace the x in the equation with 5 and solve from there
5x + 15 = 0 ...subtract 15 from both sides (subtraction property of equality)
5x = -15 ...divide both sides by 5 (division property of equality)
x = -15/5
x = -3
Answer:
30-(-15)-40
=5
Step-by-step explanation:
You will the subtraction sign to open the bracket
30-(-15)-40
when - and - meet it turns to + (note only happens when opening a bracket)
this is ur result....30+15-40=5
thats how u get your 5
