Well do you know what a supplementary angles is ?
it is two angles that add up to 180 degrees
It is D because if you look at the graph every 5 years the acres decrease by 20
Answer:
The correct answer is C
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
Step-by-step explanation:
( secA + 1)( sec A - 1)
Using the expansion
( a + b)( a - b) = a² - b²
Expand the expression
We have
sec²A + secA - secA - 1
That's
sec² A - 1
From trigonometric identities
<h3>sec²A - 1 = tan ²A</h3>
So we have the final answer as
<h3>tan²A</h3>
As proven
Hope this helps you