Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : 𝑓(𝑥)=tan2𝑥 is continuous at 𝑥=𝜋/2
Reason R : 𝑔(𝑥)=𝑥2 is continuous at 𝑥=𝜋/2
In the light of the above statements, choose the correct answer from the options given below:
Explanation
Analysis of Assertion A
Function diya gaya hai: f(x)=tan2x.
Humein pata hai ki tanx ki value 2π par undefined hoti hai.
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tan(π/2) define nahi hota (∞ ki taraf jata hai).
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Kyunki tanx point x=π/2 par exist hi nahi karta, isliye f(x)=tan2x bhi wahan discontinuous hoga.
Verdict: Assertion A False hai.
Analysis of Reason R
Function diya gaya hai: g(x)=x2.
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g(x)=x2 ek polynomial function hai.
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Polynomial functions apni poori domain (R) mein continuous hote hain.
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Isliye, x=π/2 par bhi yeh continuous hoga.
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g(π/2)=(π/2)2=π2/4, jo ki ek finite aur defined value hai.
Verdict: Reason R True hai.
Final Conclusion
Correct Option: Assertion A is false but Reason R is true.