EXPLANATION
By definition,
Answer is a)
Answer:
7√2
Step-by-step explanation:
Is 12 the answer?
Rewriting the left hand side,
csc²t - cost sec t
= (1/sin²t)-(cost)(1/cost)
= 1/sin²t - 1
= 1/sin²t - sin²t/sin²t
= (1-sin²t)/sin²t
= cos²t/sin²t
= cot²t
C. 35
55 degrees + 35 degrees= 90 degrees
