Question

2. Find the value of
the value of sino cos (90-0) +cos
sin (9o°-tetta).
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Answer 1

Step-by-step explanation:

sin© cos (90-©)+cos© sin(90-©)

we know what

cos(90-©)=sin©

sin (90-©)=cos©

so

sin©.sin ©+cos©.cos©

sin²©+cos²©

1

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Answer 2

Answer:

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