if α+β = 90° find the maximum and minimum values of sinα.sinβ
P/t Sin 25°Cos115°=1/2(Sin40°-1)
P/t tan20 tan40 tan80 = tan60
If Sinθ+Sinɸ=√3(Cosɸ-Cosθ),p/t Sin3θ+Sinɸ=0
If √3 cosec20°-sec20°=4
Unfortunately, your question requires a lot of work and cannot be done for free. Submit it with all requirements as an assignment to our control panel and we'll assist you.