Answer:
cos3x+tan3x=0
⟹cos3x=−tan3x
⟹cos3x=−sin3xcos3x
⟹cos23x=−sin3x
⟹1−sin23x=−sin3x
⟹sin23x−sin3x−1=0
This is a quadratic equation in sin3x.
sin3x=−(−1)±(−1)2−4×1×(−1)−−−−−−−−−−−−−−−−−√2×1
sin3x=1±5–√2
If x takes real values, the upper sign must be rejected.
sin3x=1−5–√2
⟹3x=nπ+(−1)nsin−11−5–√2
⟹x=13[nπ+(−1)nsin−11−5–√2]
Step-by-step explanation:
Hope this kind of helps
Answer:
the top one would be my best he is because it has the two sybles in the problem they gave you
At 10 square yards, both of the prices would be at $180
150%. since you already have 6, that's 100%. the extra 3 is half of the 6, meaning that it would be 50%
Answer:
78
Step-by-step explanation:
13 jars/pizza
6 pizzas
13x6=78
