Answer:
Here the answer on how to graph
Answer:θ=41.3∘,138.7∘,221.3∘,318.7∘. Explanation: 3sin2θ−10(1−2sin2θ)=0. 23sin2θ−10=0. sin2θ=1023. sinθ=±√1023.
Step-by-step explanation:
Angle A ~ Angle FEC
Angle B ~ Angle EFC
Angle BDA ~ Angle FCE
AB ~ EF
BD ~ FC
AD ~ EC
Use the cosine rule.
c=AB=7
b=AC=8
a=BC=3
a^2=b^2+c^2-2bc(cos(A))
=>
cos(A)=(b^2+c^2-a^2)/(2bc)
=(7^2+8^2-3^2)/(2*7*8)
=13/14
=0.9286
Answer:
n has to be greater than or equal to -5.
The numbers -5,-4,-3,-2,-1,0,1....... work for that inequality
Step-by-step explanation:
