Question

cos (5x-10 ).sec (4x +20 )=1​

Answer 1

Explicación paso a paso:

Tᴀʀᴇᴀ:

• Hᴀʟʟᴀʀ ᴇʟ ʀᴇsᴜʟᴛᴀᴅᴏ.

Sᴏʟᴜᴄɪᴏ́ɴ:

• $\cos(5x - 10) \times \sec(4x + 20) = 1$
• $5x - 10 = 4x + 20$
• $x = 20 + 10$
• $x = 30$
• Esᴘᴇʀᴏ ᴛᴇ sɪʀᴠᴀ. ^-^