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aleksley [76]
4 years ago
5

Use the fact that the trigonometric functions are periodic to find the exact value of the expression.. . sin405 degrees. . tan40

5 degrees. . csc 350. . sin 9pi. ----. 4
Mathematics
1 answer:
Delicious77 [7]4 years ago
5 0
For tan(405 degrees):

405° = 360° + 45° = 45° = 9π/4 = π/4 

tanx = sinx/cosx 

sin(π/4) = √2/2 

cos(π/4) = √2/2 

[√2/2] / [√2/2] = 1 

<span>Therefore: tan(405°) = 1
</span>
You may use the same method for the other given functions.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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