Math, asked by kapadiyakrishna5, 2 days ago

evaluate : cos²π/8+cos²3π/8+cos²5π/8+cos²7π/8​

Answers

Answered by shubhangiupadhyay232
0

Step-by-step explanation:

b22 + b23.

Question 3: Let b = 4i + 3j and c be two vectors perpendicular to each other in the xy-plane. All vectors in the same plane having projections 1 and 2 along b and c respectively are given by _________.

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