Question

(1-sin 35 cos 55) =?
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Answer 1

Answer:

sin²55

Step-by-step explanation:

sin 35 = sin (90-55)== cos 55

putting the value

1- cos 55. cos 55

= 1- cos ² 55

since 1-cos²a= sin ² a

therefore, (1-sin35cos55) = sin² 55