Question

express sin 75°+cos55° in terms of the angles between zero° and 45°​

Answer 1

Answer:

cos15°+sin35°

Step-by-step explanation:

using formula,

sin(90-A)=cosA and cos(90-A)=sinA

now,

sin75°+cos55°

=sin(90°-75°)+cos(90°-55°)

=cos15+sin35°_______________________________________________

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Step-by-step explanation:

Answer 2

Answer:

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