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If `cos25^0+sin25^0=p ,`then `cos50^0`is`sqrt(2-p^2)`(b) `-sqrt(2-p^2)``psqrt(2-p^2)`(d) `-psqrt(2-p^2)`A. `sqrt(2-p^(2))`B. `-sqrt(2-p^(2))`C. `p*sqrt(2-p^(2))`D. `-p*sqrt(2-p^(2))` |
Answer» Correct Answer - C | |