Question

sin 45ºcos30° + cos45°
sin 30º =
​

Answer 1

Answer:

Your answer is :-

sin 45° = 1/√2

cos 30° = √3/2

cos 45° = 1/√2

sin 30° = 1/2

sin 45° × cos 30° - cos 45° × sin 30°

1/√2 × √3/2 - 1/√2 × 1/2

1/√2 × 1/2 × ( √3 - 1 )

√2/2 × 1/2 × ( √3 - 1 )

√2 / 4 × ( √3 - 1 ) ( Ans )

Step-by-step explanation:

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Answer 2

Answer:

Sin 45°=1/√2

Sin 45°=1/√2Cos45°=1/√2

Sin 45°=1/√2Cos45°=1/√2sin30°=1/2

Sin 45°=1/√2Cos45°=1/√2sin30°=1/2Cos30°=√3/2

Sin 45°=1/√2Cos45°=1/√2sin30°=1/2Cos30°=√3/2Therefore

Sin 45°=1/√2Cos45°=1/√2sin30°=1/2Cos30°=√3/2Therefore=Sin45°×cos30°+cos45°×sin30°

Sin 45°=1/√2Cos45°=1/√2sin30°=1/2Cos30°=√3/2Therefore=Sin45°×cos30°+cos45°×sin30°=1\√2 × √3\2 + 1\√2 × 1\2

Sin 45°=1/√2Cos45°=1/√2sin30°=1/2Cos30°=√3/2Therefore=Sin45°×cos30°+cos45°×sin30°=1\√2 × √3\2 + 1\√2 × 1\2=√3\2√2 + 1\2√2

Sin 45°=1/√2Cos45°=1/√2sin30°=1/2Cos30°=√3/2Therefore=Sin45°×cos30°+cos45°×sin30°=1\√2 × √3\2 + 1\√2 × 1\2=√3\2√2 + 1\2√2=√3 +1\2√2

Sin 45°=1/√2Cos45°=1/√2sin30°=1/2Cos30°=√3/2Therefore=Sin45°×cos30°+cos45°×sin30°=1\√2 × √3\2 + 1\√2 × 1\2=√3\2√2 + 1\2√2=√3 +1\2√2Therefore answer is √3+1\2√2

Step-by-step explanation:

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