SOLUTION: If sec(A) = \sqrt(65), and A is in Quadrant 1, find Sin2A and SinA/2.
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Question 1155697: If sec(A) = \sqrt(65), and A is in Quadrant 1, find Sin2A and SinA/2.
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
If , and is in Quadrant 1,
find and
use identity:
......plug in given
use identity:
..........
use identity:
use identity:
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