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sin α=cos(90-α)
czyli sin35⁰=cos(90-35⁰)=cos55⁰
1-sin35(stopni)/cos55(stopni)=1 - sin35⁰/cos55⁰= 1- sin35⁰/sin35⁰=1-1=0
sin35⁰=cos(90⁰-35⁰)=cos55⁰
1-cos55⁰/cos55⁰=1-1=0