Step-by-step explanation:
NSWER
From the above equation, we get
cosθ=sinθ
Hence
θ=450
Therefore
sin4θ+cos4θ
=sin4450+cos4450
=2×(21)4
=2×41
=21
Answer: I see you have already marked most of these correctly, the permiter of #4 is 28
Step-by-step explanation:
6: Perimeter: 34 Area: 60
7: 340 / 17 Length of base = 20
8: 221 / 17 Length of base = 13
It should be the number 55. <span> ❤</span>please mark me as brainliest ❤
30% off
your welcome ;D two week old question tho
thats rare