The answer is 52. And I better use that for refreshing my understanding!!!

Amazing

x = racine carrée de 18

x= 1 également

simpler with the formula of compound radicals !!

Why is bro's π is so wierd

√25/√(5-√24) =5/(√(√3)^2+(√2)^2-2√6) =5/√3-√2 =5(√3+√2)/(√3-√2)(√3+√2) =5(√3+√2) ans 🇮🇳 My best rule sir 🙏🙏

Excellent

A Stanford University entrance exam: [(√24)/(√30 + √6)]¹² =? (√24)/(√30 + √6) = (2√6)/[(√5 + 1)√6)] = 2/[(√5 + 1) = [2(√5 - 1)]/(5 - 1) = (√5 - 1)/2 Let: a = (√5 - 1)/2, a² = [(√5 - 1)²]/2² = (5 - 2√5 + 1)/4 = [2 - (√5 - 1)]/2 = 1 - a a⁴ = (a²)² = (1 - a)² = 1 - 2a + a² = 1 - 2a + (1 - a) = 2 - 3a a⁶ = (a²)(a⁴) = (1 - a)(2 - 3a) = 2 - 5a + 3a² = 2 - 5a + 3(1 - a) = 5 - 8a a¹² = (a⁶)² = (5 - 8a)² = 25 - 80a + 64a² = 25 - 80a + 64(1 - a) = 89 - 144a [(√24)/(√30 + √6)]¹² = a¹² = 89 - 144a = 89 - 144[(√5 - 1)/2] = 161 - 72√5 Final answer: [(√24)/(√30 + √6)]¹² = 161 - 72√5

x=3

x=3

x=log45/log15=(log5+2log3)/(log5+log3)=1+(log3/(log5+log3))≈1+(0.477/(0.7+0.477))≈1.654/1.177≈1.4053. Deviation is about 0.0004.

x=log24/log4=(log4/log6)/log4≈(0.602+0.778)/0.602≈1.38/0.778≈2.2924. Deviation is about 0.0001.

Acredite se quiser, no brasil isso é ez pz, e eu sou um cara que mora numa zona muito rural, estudo em colegio público estadual, e achei isso relativamente fácil, quem dera se entrar na faculdade no Brasil fosse tão fácil assim... Mas amei a explicação, voce explicou muito bem, acho legal em ver indianos muito bons em matemática

I could never believe that k oxford university itny simplest questions dety hn test me🤔

Simplify by sqrt(6) and the expression is R^12 where R = 2/(Sqrt(5)+1). One observes that R is the inverse of the golden ratio S. The golden ratio solves the equation S^2 -S - 1 = 0 so we can obtain recursively all the S powers by S^2 = S + 1 and we get S^n = Fib(n) * S + Fib( n-1) where Fib is the Fibonacci number. Now Fib(11) = 89 and Fib(12) = 144 so S^12 = 89 + S * 144. Finally we get R^12 = 1 / S^12 = 1 / ( 89 + S * 144). Putting the expression of S inside we get R^12 = 1/ ( 161 + 72* Sqrt(5) ) and rationalizing we get R^12 = ( 161 - 72* Sqrt(5) ) / (161^2 - 72^2 * 5 ). The denominator is 25921-25920 = 1 so the result is = ( 161 - 72* Sqrt(5) ) .

Pas évident ! mais avec ténacité Bravo !!

Ja,ja, too much turns to reach a result available in mind, with no need to write down, 😂

Só em você olhar pra pergunta já sabe que x vale 3. Essa pergunta é muito óbvia .

18+2