3 years ago

Prove that : (Cos285 + Cos 345 ) ÷ (Sin435- Sin 375 ) = root3

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

6 0

Answer:

you have mula or gula

Step-by-step explanation:

what do you have mula or gula

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Answer:

Option B, False

Step-by-step explanation:

Step 1: Get the surface area formulas for both shapes

Surface Area Formula for Cone: $A = \pi * r(r + \sqrt{h^{2} + r^{2}})$

Surface Area Formula for Cylinder: $A = 2\pi rh+2\pi r^{2}$

Step 2: Plug in the values and solve

Cone: $A = \pi * r(r + \sqrt{(3r)^{2} + r^{2}})$

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Cylinder: $A = 2\pi r*r+2\pi r^{2}$

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Step 3: Compare

$\pi r^{2} + \pi \sqrt{10}r^{2}\neq 4 \pi r^{2}$

They are not equal, therefore the answer is False.

Answer: Option B, False

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Prove that : (Cos285 + Cos 345 ) ÷ (Sin435- Sin 375 ) = root3​

Prove that : (Cos285 + Cos 345 ) ÷ (Sin435- Sin 375 ) = root3