Math, asked by sarafsunidhi5, 1 month ago

show that cos ^2 ( π/4 - alpha ) - sin ^2 (π/4 - alpha ) 2 sin alpha cos alpha​

Answers

Answered by amandeep3885
0

Step-by-step explanation:

  1. iiiii-cos^÷2-1%200^3×2+6
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