What is the value of 4(cos^2(10^@)+cos^2(50^@)-sin40^@sin80^@)
What is the value of cos10∘−sin10∘cos10∘+sin10∘? View Solution What is the value of (cos10∘+sin20∘)(cos20∘−sin10∘)? View Solution What is the value of ∣∣∣sin10∘−cos10∘sin80∘,cos80∘∣∣∣ ? View Solution The value of sin10∘cos80...