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All Questions Topic List |
AllQuestion and Answers: Page 142 |
Question Number 201209 Answers: 0 Comments: 4
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Question Number 201200 Answers: 3 Comments: 2
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Question Number 201192 Answers: 1 Comments: 0
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Question Number 201190 Answers: 1 Comments: 0
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Question Number 201185 Answers: 1 Comments: 0
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Question Number 201172 Answers: 1 Comments: 0
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Question Number 201166 Answers: 1 Comments: 0
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Question Number 201162 Answers: 4 Comments: 0
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Question Number 201152 Answers: 4 Comments: 0
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if 4^x +4^(−x) =7
then 8^x +8^(−x) =?
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Question Number 201150 Answers: 2 Comments: 0
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Question Number 201149 Answers: 1 Comments: 0
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Question Number 201146 Answers: 1 Comments: 4
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Question Number 201144 Answers: 2 Comments: 0
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(((14)/(15)))^6 ×(((45)/(28)))^6 =
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Question Number 201140 Answers: 1 Comments: 0
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If R_− =x^2 yi_− −2y^2 zj_− +xy^2 z^2 k_− , find ∣(d^2 R/dx^2 )×(d^2 R/dy^2 )∣
at the point (2,1,−2)
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Question Number 201139 Answers: 1 Comments: 1
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Question Number 201135 Answers: 1 Comments: 0
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Question Number 201134 Answers: 0 Comments: 0
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S : Area of AB^Δ C
in AB^Δ C : (a^( 2) /(4S)) =^? (1/2) (cot(B)+cot(C))
(a^( 2) /(4S)) = (( a^( 2) )/(4 ((1/2) bc sin(A))))=((4R^2 sin^( 2) (A))/(8R^( 2) sin(B)sin(C)sin(A)))
= ((sin (A ))/(2sin(B)sin(C)))
=^(A+B+C=π) ((sin(B)cos(C)+cosBsin(C))/(2sin(B)sin(C)))
= (1/2) (cot(B)+cot(C)) ■
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Question Number 201133 Answers: 0 Comments: 1
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Ω= ∫_1 ^( 3) (( 1)/( (√((x−1 )^3 )) + (√((x+1 )^3 )))) dx= ?
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Question Number 201112 Answers: 1 Comments: 0
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Question Number 201110 Answers: 1 Comments: 0
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∫(1/( (√((x−a)^3 ))+(√((x+a)^3 ))))dx
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Question Number 201108 Answers: 0 Comments: 6
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Question Number 201106 Answers: 1 Comments: 0
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calculate ...
Σ_(n=1) ^∞ (( ζ(2n ))/(2^( n) .n)) = ?
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Question Number 201107 Answers: 0 Comments: 6
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two weels, those have the same materials,
with radii:r_1 =4 and r_2 =14
are starting to move on a surface,with
the same velocity,from:x=0 to x=20.
the surface has no friction.
wich one arrives faster?
any informations needed?
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Question Number 201091 Answers: 1 Comments: 2
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Question Number 201184 Answers: 1 Comments: 0
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Question Number 201081 Answers: 4 Comments: 0
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