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What is the value of cos2 31 degrees-sin2 59 degrees
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What is the value of cos2 31 degrees-sin2 59 degrees

User James Morrison
by
5.4k points

2 Answers

4 votes

Answer:

0

Explanation:

Using the cofunction identity

sin x = cos(90 - x), then

cos²31° - sin²59°

= sin²(90 - 31)° - sin²59°

= sin²59° - sin²59°

= 0

User Bryan Guillen
by
5.2k points
3 votes

Answer:

hope this will help you..

What is the value of cos2 31 degrees-sin2 59 degrees-example-1
User Naveen Nelamali
by
5.7k points
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