Question

the value of sin ² 30 - cos ² 60​

Answer 1

Sin^2(30) - Cos^2(60) = (1/2)^2 - (1/2)^2

= 1/4 - 1/4

= 0

Thus, the answer is zero(0).

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Trigonometric Ratios used:

• Sin(30)° = 1/2
• Cos(60)° = 1/2

Answer 2

Answer:

sin²30-cos²60=0

Step-by-step explanation:

sin 30=1/2      cos 60=1/2

sin²30=(1/2)²=1/4

cos²60=(1/2)²=1/4

sin²30-cos²60=1/4-1/4=0