The common difference, d, is 5 and the starting value, a, is 2.
Filling this in the form of
<span>you get
</span>
A cyclist travels 2/3 of his journey at the average speed of 12 miles per hour. He then travels the remaining 30 miles of his jo
1 answer:
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The common difference, d, is 5 and the starting value, a, is 2.
Filling this in the form of
<span>you get
</span>
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