Question

4 tan^2 A - 4 sec^2A is equal to

Answer 1

Answer:

4tan²A-4sec²A

-4(sec²A-tan²A)                                                   identity: tan²θ+1=sec²θ

-4(1)

-4

Step-by-step explanation:

Answer 2

The value of above expression is -4.r:

Step-by-step explanation:

Since we have given that

$4\tan^2 A-4\sec^2 A\\\\=4(\tan^2 A-\sec^2 A)$

As we know that

$\sec^2 A-\tan^2 A=1$

So, it becomes,

$4(\tan^2 A-\sec^2 A)=4\times -1=-4$

Hence, the value of above expression is -4.

# learn more:

If sec theta is equals to X + 1 by 4 x prove that sec theta + tan theta is equals to 2 x or 1 by 2 x​

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