Pythagorean identity:
sin²+cos²=1
Then cos²=1-sin²
Substitute:
1-2cos²
1-2(1-sin²)
1-2+2sin²
2sin²-1
The like terms would be (-2x) and 6x, the other one would be 8 and (-9)
Answer:
11/15 km
Step-by-step explanation:
Simply sum the areas:
2/5 + 1/3 = (6 + 5)/15 = 11/15
Answer:
I'm not answering your question but I wanted to tell y'all to have a good day!<3
Step-by-step explanation:
