Which pair of angles has congruent values for the sin x^o and the cos y^o? a. 35^o; 55^o, b. 35^o; 145^o, c. 35^o; 70^o, d. 35^o; 35^o

Brugolino7t

Brugolino7t

Open question

2022-08-20

Which pair of angles has congruent values for thesinx and the cosy?
a. 35;55
b. 35;145
c. 35;70
d. 35;35

Answer & Explanation

Kaleigh Patel

Kaleigh Patel

Beginner2022-08-21Added 5 answers

Step 1
Note:
cos(90θ)=cos(90)cosθ+sin(90)sinθ=0×cosθ+1sinθ
cos(90θ)=sinθ
Step 2
Using, it θ=35, then
cos(9035)=sin(35)
cos(55)=sin(35)
35,55
option a is correct." with "Which pair of angles has congruent values for the sinx and the cosy?
a. 35;55
b. 35;145
c. 35;70
d. 35;35

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