The value of (sin30° + cos30°) – (sin60° + cos60° ) is
(a) –1 (b) 0 (c) 1 (d) 2
Answers
Answered by
1
Answer:
b) 0
Step-by-step explanation:
(sin= 90 - A)
=(sin30°+sin60°) - (sin60°+sin30°)
=(sin90°) - (sin90°)
= 0
Answered by
2
Answer:
0
Step-by-step explanation:
sin 30° = 1/2
cos 30° = √3/2
sin 60° = √3/2
cos 60° = 1/2
(sin 30°+cos30°)–(sin60°+cos60°)
{(1/2)+(√3/2)}–{(√3/2)+(1/2)}
{(1+√3)/2}–{(1+√3)/2}
0
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