Step-by-step explanation:
1/sin^2A -cos^2A/sin^2 A. ~tan = sin/cos
(1-cos^2)/sin^2A. ~ take lcm
sin^2A/sin^ A. ~ 1-cos^2A = sin^2A
1
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Answer: 64 years old
Step-by-step explanation:You subtract 2082 by 2018 to get the sum of 64
Answer:
the last one
maybe?
Step-by-step explanation: