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How do I use trigonometric ratios to work out lengths in right-angled triangles?

There are three trigonometric ratios: sine, cosine and tangent, shortened to sin, cos and tan. Firstly, let's draw a triangle and label the sides. In a right-angled triangle, we call the bottom side between ...
JC
Answered by Joseph C. • Maths tutor
3865 Views

Work out the percentage increase from 30 to 420.

First, we need to work out the difference (increase) between our two numbers:420 - 30 = 390 Second, we divide the difference by the original starting number:390 / 30 = 13 Lastly, we multiply this number by 1...
SS
Answered by Sophia S. • Maths tutor
3947 Views

Qué hiciste el año pasado durante las vacaciones?

Durante las vacaciones, visité otro país con mi familia, compuesto de mi madre, mi padre, mis cuatro hermanos y yo. Viajamos a Francia por el tren, y llegamos en Paris. Lo pasé fenomenal porque hicimos mucho...
SG
Answered by Sophia G. • Spanish tutor
7972 Views

Do Christians believe that men and women are equal?

This is a very interesting question - mainly because it depends very much on the denomination of Christianity that we are looking at. It is important to remember that when the Bible was written, society was ...
HT
8130 Views

Qu'est-ce que tu aimes faire le week-end?

D'habitude, j'adore me promener au bord de la mer avec mon petit chien Dodo les week-ends, surtout avec ma copine Anne. Le samedi dernier, je me suis levée très tôt afin de voir l'aube avec elle et on a mang...
RA
Answered by Rhiannon A. • French tutor
6082 Views