David Nguyen Tutoring Service in Perth, Western Australia | Tutor/teacher

David Nguyen Tutoring Service

Locality: Perth, Western Australia

Phone: +61 403 312 613

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22.01.2022 Euler's approach to Basel Problem

22.01.2022 Ratio between Green and blue area?

18.01.2022 Pretty wild narcissistic numbers

17.01.2022 Challenge 32 : HIGH LEVEL again. Can you find the square root of square root ? - You can find the challenge 31 and more here : https://bit.ly/2Hk37Cn Dfi 32: ...Encore une fois du HAUT NIVEAU. Pouvez-vous trouver la racine carre de la racine carre? - Vous pouvez trouver le dfi 31 et plus ici : https://bit.ly/2Hk37Cn 32: . 31 : https://bit.ly/2Hk37Cn

16.01.2022 Find the nth term of: 1,3,6,10,15,... #help

15.01.2022 For all New Members Find the roots of the equation ((x-5))=16For all New Members Find the roots of the equation ((x-5))=16

15.01.2022 Solution of the problem of week 59.

14.01.2022 Find the nth term of the sequence: 6, 66, 666, ..... Show working....!

13.01.2022 5+5n=140 Find n Please show workings I dont know it Please dont use by inspection

12.01.2022 Radius of small circle?

12.01.2022 Solve for n ...5^n+5n=140

12.01.2022 Nice proof of geometric series

10.01.2022 Area of quadrilateral ABCD?

08.01.2022 Calamitous Clod challenged Grogg to split the equilateral triangle below into two pieces of equal area using the shortest curve he could. Groggs first idea was... to draw a vertical line, like so. Groggs curve has length (3/2) 0.866. Can you help Grogg find a shorter curve? What is the shortest possible curve that splits this equilateral triangle into two pieces of equal area? Have fun puzzling this weekend with aops.com/keeplearning

08.01.2022 Problem of the week every Friday. Week 61. Solution will be available next Friday. Thanks.

08.01.2022 Why constant / 0 is infinity !?

07.01.2022 Find ration between Shaded area and rectangle area (inside the rectangle all Quadrilateral are square)

07.01.2022 (2 cos(2x) Upper limit = /4 Lower limit = /12 (2 cos(2x) Upper limit = /4 Lower limit = /12

05.01.2022 5+5n=140 Find n Please show workings I don't know it Please don't use by inspection

05.01.2022 Do watch solution of this question on my YouTube channel. https://youtu.be/ylHAsAFybcg

05.01.2022 The more you think about it the more beautiful it becomes. Enjoy

04.01.2022 Solution of the problem of week 60.

04.01.2022 Solve it ,find value of x?

03.01.2022 Problem of the week every Friday. Week 60. Solution will be available next Friday. Thanks

01.01.2022 A visual proof that Arithmetic mean > Geometric mean > Harmonic mean Equality holds for a = b