B. 4√21 / 4√21
ExplanationUsing (a + b)² - (a - b)² = 4ab gives 4√7√3 = 4√21.
(a + b)² - (a - b)² = 4ab होता है इसलिए 4√7√3 = 4√21।
Tap once to confirm. On the next tap, login will open for the answer.
Tap once to confirm. On the next tap, login will open for the answer.
Tap once to confirm. On the next tap, login will open for the answer.
Tap once to confirm. On the next tap, login will open for the answer.
Tap once to confirm. On the next tap, login will open for the answer.
Tap once to confirm. On the next tap, login will open for the answer.
Use Google login or mobile OTP. Admin can block users and control login providers.
Quiz questions, daily challenge and practice pages will open according to your selected class.