CBSE Class 10 Answered
Evaluate (cos²67°-sin²3°)
Asked by shivanshuranjeet | 05 Mar, 2019, 20:58: PM
![Your space question space should space be
cos squared 67 minus sin squared 23
rightwards double arrow cos squared open parentheses 90 minus 23 close parentheses minus sin squared 23
rightwards double arrow sin squared 23 minus sin squared 23
equals 0](https://images.topperlearning.com/topper/tinymce/cache/dcf2c0690e59647669c70b86391551ff.png)
Answered by Arun | 06 Mar, 2019, 09:14: AM
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