Cos75° का मान ज्ञात करो।
Answers
Answered by
0
Answer:
tell me in English
I can't understand hindi
Answered by
1
Answer:
cos (30°+45°)
cos30°cos45°-sin30°sin45°
=√3/2 * 1/√2 - 1/2 * 1/√2
= √3/√2-1/2√2
=( 2√3 -1) /2√2
=(2√6 -√2)/4
Step-by-step explanation:
mark as brainlist
Similar questions