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Marina CMI [18]
3 years ago
7

Please help I will award

Mathematics
1 answer:
Fynjy0 [20]3 years ago
6 0

Answer:

17.) A = 17.5 cm squared

18.) A = 36

Step-by-step explanation:

17.) 7 x 5 x 1/2

7 x 5 = 35

35 x 1/2 = 17.5

18.) 8 x 9 x 1/2

8 x 9 = 72

72 x 1/2 = 36

I hope this helped. I am sorry if you get this wrong.

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Now differentiate, applying the chain rule on the right hand side.

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\dfrac{\mathrm dy}{\mathrm dx}=e^{x\ln\cos x}\left(\ln\cos x-x\tan x\right)
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