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দেওয়া আছে, 

 

 

 

 

 

 

 

GLb, 
 

                  
 

                  

; কিন্তু এখানে এই ফাংশনটির ডোমেন  হলে সংখ্যাইয়েত  হবে।

সুতরাং এখানে ,

 

আবার,

 

                   

                    

(প্রমানিত)

No answer found.
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Answer the Question and earn rewards! 🏆✨ <br> Provide correct answer to Question, help learners, and get rewarded for your contributions! 💡💰'
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AB=3x-4x2x-2xx0-x-xxx2x-2x2x5x-4x3x7x-5x

=x3-42-210-1-11 .x 12-225-437-5=x2100010001 =x2000x2000x2

অনুরূপভাবে, BA=x2000x2000x2 

অতএব, AB = BA

অতএব,  x2I1x2A =B-1 I B-1=B-1=Ax2=3x-4x2x-2x1x0-1x-1x1x 

অতএব, B-1=Ax2

 

 

ksec2θ+cosec2θ=2 k21cos2θ+1sin2θ=4

k2sin2cos2θsin2θ+cos2θ=4

4k2sin2θ cos2θ = 16 ksin2θ2=42 ... ... ... (i)

-kcos2θcos2θ+sin2θ=3(kcos2θ)2=32... ... ... (ii)

(i) + (ii) করে পাই, k2(sin22θ+cos22θ)=25 k =±5

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