Answer:
fourth option
Step-by-step explanation:
Using the trigonometric identity
cos²x + sin²x = 1
Divide all terms by cos²x
+
=
which gives
1 + tan²x = sec²x
Answer:
-15
Step-by-step explanation:
-3 - 2(-6)
-3 -12
-15
Answer:
7, 7.1, √51, 7.2
Step-by-step explanation:
√51 is 7.14
22's answer is because they're alternate