Answer:
D
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
Answer:
-4sinθcosθ
Step-by-step explanation:
Note:
1. (a + b)^2 = a^2 + 2ab + b^2
2. (a - b)^2 = a^2 - 2ab + b^2
3. sin^2θ + cos^2θ = 1
(sinθ -cosθ)^2 - (sinθ + cosθ)^2
= sin^2θ - 2sinθcosθ + cos^2θ - (sin^2θ + 2sinθcosθ + cos^2θ)
= sin^2θ + cos^2θ - 2sinθcosθ - (sin^2θ + cos^2θ + 2sinθcosθ)
= 1 - 2sinθcosθ - (1 + 2sinθcosθ)
= 1- 2sinθcosθ -1 - 2sinθcosθ
= - 2sinθcosθ - 2sinθcosθ
= -4sinθcosθ
Answer:
1. Radius 18in Diameter 38in Circumference 36in
2. Radius 9in Diameter 34in Circumference 18in
3. Radius 6in Diameter 36in Circumference 12in
4. Radius 7in Diameter 26in Circumference 14in
5. Radius 5in Diameter 8in Circumference 10in
6. Radius 11in Diameter 33in Circumference 22in
7. Radius 6in Diameter 20in Circumference 12in
8. Radius 7in Diameter 16in Circumference 14in
9. Radius 2in Diameter 12in Circumference 4in
Step-by-step explanation:
Tip: When finding the circumference of a circle, just multiply the radius by 2!
Hope I get my brainliest even tho I couldn't get all of it!
