Question
(cos5°+sin5°)/(cos5°-sin5°) is equal
to:Solution
(cos5°+sin5°)/(cos5°-sin5°) Divide the numerator and denominator by cos5° (1+tan5°)/(1-tan5°) (tan〖45°〗 + tan5°)/(1-tan45° ×tan〖5°〗 ) tan (A + B) = (tanA°+tanB°)/(1-tanA°+tanB°) tan (45 + 5) = tan 50
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