cos-47sec47 how do i find the exact value it is a single expression

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Q: Simplify the following expressions: 3 5 5 (A) 4 · 5 6. 7 3 8 8 (B) 7 4 -3 + 4 6 7 -6 4 1 5 -8 7 7 -8…

A: I am solving in step 2

Q: establish the identity show all steps please (7costheta-2sintheta)^2+(2costheta+7sintheta)^2=53

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Q: 4. Let te R. Calculate and simplify the real part of 1/2 (eit + e-it).

A: We know Euler's fomrula eit =Cos t + i sin t

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A: The expression is x8x-2.

Q: Write the expression in rectangular form, x + yi, and in exponential form, re (√5 - 1) 8

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Q: 1-cossquaretheta ) cosecsquaretheta =1

A: Solution is here

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Q: 1124 10 10 Evaluate 7 I for x= -10. A -55 -14 C 29 D 99

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Q: Find the exact value of the following expression. sec (-840) sec (-840)⁰ = (Simplify your answer,…

A: Sec(-840)°

Q: 3. 09 0-16

A: Given determinant is : -1-263 To find the value of determinant.

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A: By the exponential rule, we can write:                          a32 = a12×3 = a123 = a3OR  a32 =…

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Q: Find the quotient. Write the answer in standard form. 5+4i 3+6l

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