Trigonometryeasy · Past Paper
What is the value of sec²A - tan²A?
A0
B-1
C2
D1
✓ Correct Answer: D — 1
From the identity 1 + tan²A = sec²A, rearranging gives sec²A - tan²A = 1.
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✓ Correct Answer: D — 1
From the identity 1 + tan²A = sec²A, rearranging gives sec²A - tan²A = 1.
Share this question