Solution: If sec^2 A is 5/2, the quantity 1 – sin^2 A is equivalent to?

If sec^2 A is 5/2, the quantity 1 – sin^2 A is equivalent to? How to solve problem using Pythagorean relations?

If sec^2 A is 5/2, the quantity 1 – sin^2 A is equivalent to?

Problem Statement: ECE Board April 1999

If sec^2 A is 5/2, the quantity 1 – sin^2 A is equivalent to?
  • A. 2.5
  • B. 1.5
  • C. 0.4
  • D. 0.6

Problem Answer:

1 – sin^2 A is equivalent to 0.4

Solution:

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