How do you find the limit of # [cos(x+(pi/2))]/[cos(x-(pi/2))]# as x approaches pi?

Answer 1

#-1#

# [cos(x+(pi/2))]/[cos(x-(pi/2))]=(-sin(x))/(sin(x))=-1 forall x#
Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer 2

To find the limit of [cos(x+(pi/2))]/[cos(x-(pi/2))] as x approaches pi, we can use the limit properties and trigonometric identities.

First, let's simplify the expression using the cosine addition and subtraction formulas:

cos(x + (pi/2)) = cos(x)cos(pi/2) - sin(x)sin(pi/2) = -sin(x) cos(x - (pi/2)) = cos(x)cos(pi/2) + sin(x)sin(pi/2) = sin(x)

Now, we can rewrite the expression as:

[-sin(x)] / [sin(x)]

Since sin(x) is not equal to zero when x approaches pi, we can cancel out the sin(x) terms:

-1

Therefore, the limit of [cos(x+(pi/2))]/[cos(x-(pi/2))] as x approaches pi is -1.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

Not the question you need?

Drag image here or click to upload

Or press Ctrl + V to paste
Answer Background
HIX Tutor
Solve ANY homework problem with a smart AI
  • 98% accuracy study help
  • Covers math, physics, chemistry, biology, and more
  • Step-by-step, in-depth guides
  • Readily available 24/7