Write the value of 4tan^2-4/cos^2
Answers
Answered by
0
Answer:
-4
Step-by-step explanation:
4 tan^2∅-4 sec^2∅
=4(tan^2∅-sec^∅)
=4(-1)
=-4
Answered by
1
Answer:
-4
Step-by-step explanation:
=4 tan²x - 4/ cos²x
=4 sin²x / cos²x - 4/ cos²x
=(4sin²-4)/cos²x
= 4 ( sin²x - 1 )/cos²x
=4(-cos²x)/cos²x
=4× (-1)
= (-4)
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