Sin(a+b).cos(a-b) = sinacosa + sinbcosb
1 answer:
Sin (A + B) = sin A cos B + cos A Sin B
<span>Cos (A - B) = cos A cos B + sin A sin B </span>
<span>=> (SinACosB+ CosASinB) (CosACosB +SinASinB) </span>
<span>=>SinACosACos^2B+Sin^2ACosBSinB+Cos^2A... </span>
<span>=>SinACosA(Cos^2B+Sin^2B) +SinBCosB(Sin^2A+Cos^2A) </span>
<span>we know that Sin^2+Cos^2=1 </span>
<span>=>SinACosA(1)+SinBCosB(1) </span>
<span>=SinACosA+SinBCosB </span>
<span>Proved
</span>
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Answer:
360°F
Step-by-step explanation:
When you multiply the numerals in the brackets . The first set of brackets is 90 then the second is 4.0 then multiply them and you will get 360.0°F
Answer:
C= 82.1116
k=-0.0007192
Step-by-step explanation:
Applying logarithmic properties yields in the following linear system:
Solving for k:
Solving for C:
C= 82.1116
k=-0.0007192
The time taken is 
<h3>Distances</h3>
Given the following information:
- Distance from Neptune to Mars =
- Time is taken =
Get the time taken:
Time = Distance/Speed
Time = 
Time = 0.89 * 10^5
Time = 8.9 * 10^4hrs
Hence the time taken is
Learn more on distance here: brainly.com/question/4931057
(x-2)squared +y squared=20
Answer:
B
Step-by-step explanation:
(x-8)^2=(x-8)(x-8)=x^2-8x-8x+64=x^2-16x+64
