1.Calculate the speed of sound in air if the frequency of a sound wave is 440 Hz and its wavelength...
SirBikramSutradhar
Bikram Sutradhar a 5 times World Record Holder with Best Teacher Award 2023. He is known as SirBikramSutradhar & GrandMaster Bikram Sutradhar. Originally SirBikramSutradhar is a Government approved Brand Name which Is registered by Intellectual property of Government of India. So that you can't be used this name without permission. Even he have a another Brand Name which is known as bAstronautWay a Government approved Brand name.
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7.সামান্তরিক HOPE এর কোণ x, y এবং z এর মান নির্ণয় করো। প্রতিটির ক্ষেত্রে কোন ধর্ম ব্যবহার করা হয়েছে উল্লেখ...
(i) কোনো ঘটনা E + 'E নয়' ঘটনার সম্ভাবনা-…….. (ii) কোনো ঘটনা যা ঘটতে পারে না, এর সম্ভাবনা হল ………..,...
