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The value of (sin 30°+ cos 30°) - (sin 60°+ cos 60°) is

Posted by Kashish Garg 4 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Sourabh Tripathi 4 years, 11 months ago

Sin 30° - 1/2 Cos 30° - √3/2 Sin 60° - √3/2 Cos60° - 1/2 (1/2 + √3/2) - (√3/2 + 1/2) (√3 +1)/2 - (√ 3+1)/2 = 0

0Thank You

Gaurav Seth 4 years, 11 months ago

(sin30+cos30) - (sin60+cos60)

sin30 = 1/2

sin60= √3/2

cos30= √3/2

cos60= 1/2

=> (1/2+√3/2) - (√3/2+1/2)

=> 1+√3/2 - √3+1/2

=> 1+1+√3-√3 /2

=> 2/2

=>1

1Thank You

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