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Trava [24]
2 years ago
13

Lim x tends to π÷2 , then what is the value of (tanx + cotx) ÷ ( tanx - cotx)​

Mathematics
1 answer:
KiRa [710]2 years ago
8 0

(tan(<em>x</em>) + cot(<em>x</em>)) / (tan(<em>x</em>) - cot(<em>x</em>)) = (tan²(<em>x</em>) + 1) / (tan²(<em>x</em>) - 1)

… = (sin²(<em>x</em>) + cos²(<em>x</em>)) / (sin²(<em>x</em>) - cos²(<em>x</em>))

… = -1/cos(2<em>x</em>)

Then as <em>x</em> approaches <em>π</em>/2, the limit is -1/cos(2•<em>π</em>/2) = -sec(<em>π</em>) = 1.

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Answer:

c

Step-by-step explanation:

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3 0
3 years ago
ASK YOUR TEACHER Two streets meet at an 84° angle. At the corner, a park is being built in the shape of a triangle. Find the are
Alla [95]

Answer:

22,203 ft^2

Step-by-step explanation:

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Given;

a = 190 ft

b = 235 ft

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Area of the park is 22,203 ft^2

3 0
2 years ago
It takes an hour to mow a lawn using a mower with blades 14 inches wide. How long would it take using a mower with blades 12 inc
Ganezh [65]

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Step-by-step explanation:

5 0
3 years ago
P(x) = 3x2 - 7x + 11, find P(9).
nadya68 [22]
You need to substitute 9 with every x value in the equation. 
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p(x)= 191
6 0
2 years ago
Read 2 more answers
Add and Simplify 9/16 1/2
taurus [48]
9/16+1/2 is the same thing as  9/16 + 8/16 so lets use that. and that =17/16 which when simplified is = 1 1/16
Hope it helps!
5 0
3 years ago
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