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# Tutor profile: Ayush A.

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Ayush A.
Developer and tutor for past 6 years
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## Questions

### Subject:Trigonometry

TutorMe
Question:

If (2 sin θ – cos θ) / (cos θ + sin θ) = 1, then the value of cot θ is -

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Ayush A.

Lets divide numerator and denominator by sin θ ⇒ [(2 sin θ – cos θ)/sin θ] / [(cos θ + sin θ)/sin θ] = 1 ⇒ (2 – cot θ)/(1 + cot θ)= 1 ⇒ 2 – cot θ = 1 + cot θ ⇒ cot θ = 1/2

### Subject:Android Programming

TutorMe
Question:

What’s the difference between onCreate() and onStart()?

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Ayush A.

The onCreate() method is called once during the Activity lifecycle, either when the application starts, or when the Activity has been destroyed and then recreated, for example during a configuration change. The onStart() method is called whenever the Activity becomes visible to the user, typically after onCreate() or onRestart().

### Subject:Algebra

TutorMe
Question:

If b^2 + 1/b^2 = 1, then value of b^3 + 1 /b^3 is ....

Inactive
Ayush A.

As formula we know that - b^3 + 1 /b^3 = (b + 1/b)( b^2 - 1 + 1/b^2) On putting value of b^2 + 1/b^2 = 1 We get - b^3 + 1 /b^3 = (b + 1/b)( 1 - 1 ) b^3 + 1 /b^3 = 0 Hence answer is 0.

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