If[tex]y = {tan}^{ - 1} ( \frac{1 - {x}^{2} }{1 + {x}^{2} } )[/tex], then find [tex] \frac{dy}{dx} \: at \: x \: = 1[/tex]
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Subject:
Math -
Author:
clickerhanson -
Created:
1 year ago
Answers 2
Answer:
1
Step-by-step explanation:
We have,
t+1/t = 8
Taking cube on both sides we get
(t+1/t)³= 8³
expanding left hand side of the equation using a + b whole cube formula we get
(t+1/t)³= t³+ 1/t³+ 3t*1/t (t+1/t)
Therefore,
8³ = t³+1 /t³+3(t+1/t)
⇒ 8³ = t³+1 /t³+3(8)
8³ = t³+1 /t³+ 24
8³-24= t³+1 /t³
512-24= t³+1 /t³
488 = t³+1 /t³
Thus the value of t³+1 /t³ is 1
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Author:
rubydonaldson
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Rate an answer:
4
Step-by-step explanation:
Using divisibility test, check whether the following are divisible by 11:
1. 990
2. 6686
3. 4098
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Author:
samsondaugherty
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Rate an answer:
10
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