Q. cos²(x) - sin²(x) equals:

cos²(x) - sin²(x) का मान क्या होगा:

A
cos(2x)
B
sin(2x)
C
cos(x)
D
2cos(x)

Explanation

Explanation will be available soon. Please stay tuned.

व्याख्या जल्द ही उपलब्ध होगी। कृपया बने रहें।

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