Trigonometry FY Diploma #msbte #diploma #appliedmathematics 📚

[Comedymeerut]

Sin 75
=Sin(45+30)
=Sin 45.cos 30+cos45.sin30

[BLK]

Sin(75°) = sin(30°×45°)
Sin(a+b) = sin a * cos b + cos a * sin b.
= Sin 30 * cos 45 + cos 30 * sin 45.
= 1/2 * 1/√2 + √3/2 * 1/√2.
= 1+√3/2√2.
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