sin (45° + θ) – cos (45° – θ) is equal to
(a) 2 cos θ
(b) 0
(c) 2 sin θ
(d) 1
sin (45° + θ) – cos (45° – θ) is equal to
(a) 2 cos θ
(b) 0
(c) 2 sin θ
(d) 1
Harshit Singh , 4 Years ago
Grade 12th pass
10 grade maths> sin (45° + θ) – cos (45° – θ) is equal to...
1 AnswersPawan Prajapati
Last Activity: 4 Years ago
Answer: b
Explaination:
sin (45° + θ) – cos (45° – θ)
= sin {90° – (45° – θ)} – cos (45° – θ)
= cos (45° – θ) – cos (45° – θ) = 0
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