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
Answer:
37.68 or 37.7
Step-by-step explanation:
Circumference of a circle: 2πr
2 x 3.14 = 6.28
6.28 x 6 = 37.68 or 3.7
Answer:
the answer is a because ots increased by 8 inches
625 x 2 x 0.1 = $125
answer is <span>D. $125.00</span>
