Without using the trigonometric tables, find the values of :
i) sin 45° cos 30° - cos 45° sin 30°
Answers
Answered by
1
Sin 45°=1/√2
Cos45°=1/√2
sin30°=1/2
Cos30°=√3/2
Therefore
=Sin45°×cos30°+cos45°×sin30°
=1\√2 × √3\2 + 1\√2 × 1\2
=√3\2√2 + 1\2√2
=√3 +1\2√2
Therefore answer is √3+1\2√2
Answered by
1
Step-by-step explanation:
sin 45° cos 30° - cos 45° sin 30°
= 1/√2 × √3/2 - 1/√2× 1/2
= √3/2√2- 1/2√2
= √3-1/2√2
I hope it helps ☺️
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