Math, asked by patelnishaben47, 8 months ago

2cos²60+ 3sin²45 - 3 sin²60+ 2cos²90​

Answers

Answered by rawatkushagra04
0

Step-by-step explanation:

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Answered by REDPLANET
1

Answer:

cos²60 = 1/4

sin²45 = 1/2

sin²60 = 3/4

cos²90​  = 0

∴ 2cos²60+ 3sin²45 - 3 sin²60+ 2cos²90 = 2/4 + 3/2 - 1/4 + 0

                                                                       = 1/2 + 3/2 -1/4

                                                                       = 2 - 1/4

                                                                       = 7/4

HOPE THIS HELPS YOU........

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