फाइंड द वैल्यू ऑफ कॉस्ट 75 डिग्री
Answers
Answered by
1
Answer:
cos(75
o
)=cos(45
o
+30
o
)
=cos45
o
cos30
o
−sin45
o
sin30
o
=
2
2
3
−
2
2
1
=
2
2
3
−1
Answered by
1
Answer:
cos(75°) = cos(45° + 30°)
= cos 45º cos 30º - sin 45° sin 30⁰
√3 _ 1
2√2 2√2
√3-1
2√2
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