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2. Trigonometry
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Q6 of 164 Page 51

cos60° cos30° – sin60° sin30° is equal to

We know, and


∴


⇒ .


Comparing the above result with the given options, we find that


A. is the correct because,


B. is incorrect because,


C. is incorrect because,



D. is incorrect because,

More from this chapter

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5

The value of cosec2 60° – 1 is equal to

5

The value of cosec2 60° – 1 is equal to

6

cos60° cos30° – sin60° sin30° is equal to

7

The value of is

Questions · 164
2. Trigonometry
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