1 year ago

Sin^2 a/2 - sin a/2 + 1/4 = 0

Mathematics

1 answer:

zimovet [89]1 year ago

3 0

Answer:

a = 60° or π/3

Step-by-step explanation:

Given :-

sin² a/2 - sin a/2 + 1/4

To find :-

Solving :-

sin² a/2 - sin a/2 + 1/4 = (sin a/2 - 1/2)² = 0

sin a/2 - 1/2 = 0

sin a/2 = 1/2

a/2 = 30°

Solution :-

a = 60° or π/3

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Sin^2 a/2 - sin a/2 + 1/4 = 0​

Sin^2 a/2 - sin a/2 + 1/4 = 0