4tan²A-4sec²A is equal to?
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Answered by
6
4tan²A - 4sec²A
=> 4(tan²A - sec²A)
As we know that : sec²A = 1 + tan²A => sec²A - tan²A = 1
=> 4×1
=> 4
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Answered by
4
Answer:
- 4
Step-by-step explanation:
4tan²A-4sec²A = 4(tan²A - sec²A) = - 4 (sec²A - tan²A) = - 4
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