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A fair coin is tossed four times what is the probability of obtaining at least three heads

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`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

simplify solve for expand factor rationalize

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Steps Examples

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gcf 7, 10, 81

Solution

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Solve by:

حلّ بواسطة العوامل الأوّليّة

حلّ بواسطة بالقواسم

Solve using the Euclidean algorithm

One step at a time

7, 10, 81

أكبر مقام مشترك

بدون باقٍ b وأيضًا a هو أكبر عدد موجب يقسّم a, b أكبر مقام مشترك لـ

7 تحليل لعوامل أوّليّة لـ: 7

10 تحليل لعوامل أوّليّة لـ: 2· 5

81 تحليل لعوامل أوّليّة لـ: 3· 3· 3· 3

No common factor for 7 and 10 therefore the GCD is 1

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−▭▭	<	7	8	9	÷	`AC`
+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
▭ \|▭	)	.	0	=	+	`y`

A fair coin is tossed four times what is the probability of obtaining at least three heads

Solution

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