2020年8月2日 · Answer: Step-by-step explanation: = cos25+cos210+cos215.....cos275+cos280+cos285+cos290 Now cos90= 0, putting the value …

2020年8月30日 · Click here 👆 to get an answer to your question ️ The value of cos^2 5° + cos^2 10° + cos² 15° + ... + cos90° is

2024年7月25日 · Answer: To solve the expression \(\cos(25^\circ 35') \cdot \cos(34^\circ 25') - \sin(25^\circ 35') \cdot \sin(34^\circ 25')\), we can use the cosine of the sum formula:

2018年10月13日 · Heya, We know that, sin( A + B ) = sinAcosB + cosAsinB Given, sin25°cos65° + cos25°sin65° Let A=25° and B=65°

2019年6月27日 · Answer: Step-by-step explanation: You've to know the most basic values of sines and cosines. as sin60°=√3/2 ...

2020年12月27日 · You can calculate it by using numerical methods precise up to whatever digit you want . But if you want to find out for solving questions when you don't have ca…

2023年9月18日 · Sin 25/ Sec 65° Cos 25° /Cosec 65° - 58077260

Click here 👆 to get an answer to your question ️ If cosA = 12/13 then find the value of11+sin25 A + 1+ cos25 AMEERWWWwwCEWWWwwww.WWWWWWWEwww.ww

2019年6月9日 · Sin 25° cos 65° + cos25° sin 65° Let 25° = A 65° = B The given sum is the form Sin A cosB + Cos A sin B ...

2021年2月28日 · Answer: Hopes it helps you. Step-by-step explanation: L.H.S = cos5 – sin 25 = sin 95 – sin 25 [ sin(90+5) = cos5 ]