Question

10. 1- cot square 45 degree/ 1+ sin square 90 degree​

Answer 1

Answer:

Step-by-step explanation:

1 - cot²45°/1 + sin²90° =

         since cot45° = 1

                    cot²45° = 1² = 1

          since sin90° = 1

                    sin²90°= 1² = 1

now substitute the values

 therefore 1-cot²45°/1+sin²90° = 1-1/1+1

                                                    = 0/2

                                                    = 0

Answer 2

Answer:

HEY MATE HERE'S YOUR ANSWER

Step-by-step explanation:

$10 \times 1 - ( {cot}^{2}45^{o} ) + sin^{2} {90}^{o} \\ = 10 - (1)^{2} 1 + {1}^{2} \\ (since \: cot45 ^{o} = 1 \: \: \: sin90 ^{o} = 1) \\ \frac{9}{2}$

HOPE IT WILL HELP YOU

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