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2.tan 54° can be expressed as |
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Answer» 54°-9°=45°or, 54°=45°+9°or, tan54°=tan(45°+9°)or, tan54°=tan45°+tan9°/1-tan45°tan9°or, tan54°=1+tan9°/1-tan9° [∵, tan45°=1]or, tan54°=(1+sin9°/cos9°)/(1-sin9°/cos9°)or, tan54°={(cos9°+sin9°)/cos9°}/{(cos9°-sin9°)/cos9°}or, tan54°=cos9°+sin9°/cos9°-sin9° (Proved) Read more on Brainly.in - https://brainly.in/question/796552#readmore tan 90-tan 45=tan 54*-1=tan 54answer is not possible tan(45∘) value The value oftanfunction when angle of right triangle equals to45∘ is calledtanof angle45degrees. According to sexagesimal system, it iswrittenastan(45∘) in mathematics. The value oftanof angle45degrees is equal to 1 exactly and also an integer. |
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