Which of the following expression is equal to cos2 0+ sin? 0-sec 0 cos 0? | A. sec 0 csc 0 +1 B. cot 0 tan 0 +1 C. sec 0 csc 0 - 1 D. cot 0 tan 0- 1 O A O B O D

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A: Given query is to simplify the expression.

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A: Since you have asked multiple question, we will solve the first question for you. If you want any…

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A: Cos(π/4)= 1/√2= 0.707106781

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Q: cos x tan x 1+ cot x

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A: Using Trigonometry identities,

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A: Explanation of the solution is given below...

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Q: sin cos

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Q: Find the values in

A: Given:

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Q: If cos a + cos B= a and sina + sin B= b, then show that 2 sin 2a + sin 2B = 2ab 1 a2 + b2

A: given: cosα+cosβ=asinα+sinβ=b we have to show that  sin2α+sin2β=2ab1-2a2+b2 R.H.S: 2ab1-2a2+b2…

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Q: Which of the following is the simplified expression of 1- 1 sece sin²e cos²0 O tan²e O sec²9 cose?

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Q: Find cos o. (8, 6) ? COS O ニ Give your answer in lowest terms.

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