-2.31-(-5.9)= -2.31+5.9= 3.59
0, adding it in and then subtracting it out cancels both out
Answer:
4x-8+4y
Step-by-step explanation:
Answer:
- 1/2, 1/4, 1/8, 1/16, 1/32
Step-by-step explanation:
<u>Given GP with:</u>
<u>The equation for nth term is:</u>
<u>Find the first 5 terms:</u>
Answer:
√7 / 4
Step-by-step explanation:
Trigonometrical identity are used to show the relationship between the sides and angles of a right angled triangle. Some trigonometric identities are:
sinΘ = opposite / hypotenuse, cosΘ = adjacent / hypotenuse, tanΘ = opposite / adjacent.
Given that cosΘ = 3 / 4
Therefore, cosΘ = adjacent / hypotenuse = 3 / 4
adjacent = 3, hypotenuse = 4. Let x be the opposite side, to get the opposite side, we use Pythagoras theorem:
opposite² + adjacent² = hypotenuse²
x² + 3² = 4²
x² + 9 = 16
x² = 7
x = √7
sinΘ = opposite/hypotenuse = √7 / 4