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Jun
30
awarded  Popular Question
Jun
13
awarded  Yearling
Apr
19
revised Limit $\lim_{x→0} x^{x^x}$
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Apr
17
revised How to find asymptotic expansions of all real roots of $x \tan(x)/\epsilon=1?$
edited title
Apr
17
revised Domain and Range, Vector Calculus
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Apr
17
reviewed Edit Domain and Range, Vector Calculus
Apr
17
revised Domain and Range, Vector Calculus
Turing to mathjax
Apr
16
reviewed Approve Dice roll probability, at least 9 total?
Apr
16
reviewed Reject Prove that $\int_0^1 \frac{dx}{f^2(x)+1} \le \frac{ \pi}{4}$
Apr
16
comment How to find the area of an isosceles triangle without using trigonometry?
Using your hint ,applied on $\triangle ABC$ ,where $AB=AC =10 $ cm. and $\angle BAC=30^ \circ ,BD \perp AC $, I see that $\triangle ABC= \frac 12 \times 10 \times BD=5BD$ where $BD=\sqrt {10^2-AD^2}$. Now,I am stuck. Can someone help?
Apr
16
revised How to find the area of the following triangle
added 2 characters in body
Apr
16
reviewed Edit Sylow's theorem and uniqunes of normal supgroup
Apr
16
revised Sylow's theorem and uniqunes of normal supgroup
improved formatting
Apr
14
revised Show that for all real numbers $a$ and $b$, $\,\, ab \le (1/2)(a^2+b^2)$
added 8 characters in body; edited title
Apr
12
revised How to find the area of the following triangle
added 288 characters in body
Apr
11
comment How to find the area of the following triangle
Thanks a lot.. got it..Crystal work..
Apr
11
accepted How to find the area of the following triangle
Apr
11
comment How to find the area of the following triangle
I still could not finish it . We can find the area of rhombus in 2 ways and from that we get the relation $20 h=\frac12 ab$, where $h$ is the height of the rhombus and $a,b$ are the lengths of diagonals.. Now, I am stuck.
Apr
11
comment How to find the area of the following triangle
I do not get it...It will give me rhombus with two opposite angles of $45 ^{\circ}$ each and other two opposite angles of $135 ^{\circ}$ each.
Apr
11
comment How to find the area of the following triangle
wow..got your point..Then it becomes rhombus...I think i can take it forword..